OracleDatabaseMetaData (Oracle Database JDBC Java API Reference)

java.lang.Object
- oracle.jdbc.OracleDatabaseMetaData

All Implemented Interfaces:

DatabaseMetaData, Wrapper, AdditionalDatabaseMetaData, oracle.jdbc.internal.ACProxyable, oracle.jdbc.internal.AdditionalDatabaseMetaData
```
public class OracleDatabaseMetaData
extends Object
implements oracle.jdbc.internal.AdditionalDatabaseMetaData
```
The oracle.jdbc.OracleDatabaseMetaData class along with oracle.jdbc.driver.OracleDatabaseMetaData implement the JDBC 3.0 DatabaseMetaData interface and in ojdbc6.jar and above, the JDBC4.0 DatabaseMetaData interface. Note that the object returned by a call to java.sql.Connection.getMetaData() for a connection from the Oracle driver will be an instance of oracle.jdbc.driver.OracleDatabaseMetaData. There are several proprietary methods which are defined in this class. Only public long getLobMaxLength() will be retained in future versions. The following are superseeded by standard methods public static int getDriverMajorVersionInfo public static int getDriverMinorVersionInfo public static String getDriverVersionInfo and are deprecated. public String getLobPrecision() is no longer meaningful and is deprecated.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

protected static class OracleDatabaseMetaData.DataTypeSource

Nested Classes
Modifier and Type	Class	Description
`protected static class`	`OracleDatabaseMetaData.DataTypeSource`

Field Summary

Fields
Modifier and Type	Field	Description
`protected Object`	`acProxy`
`protected oracle.jdbc.internal.OracleConnection`	`connection`
`protected static Pattern`	`sqlEscapePattern`
`protected static String`	`sqlEscapeRegex`
`protected static Pattern`	`sqlWildcardPattern`
`protected static String`	`sqlWildcardRegex`

Constructor Summary

Constructors
Constructor Description

OracleDatabaseMetaData(OracleConnection conn)
Deprecated.
-- Please use the factory method java.sql.Connection.getMetaData()

Constructors
Constructor	Description
`OracleDatabaseMetaData(OracleConnection conn)`	Deprecated. -- Please use the factory method java.sql.Connection.getMetaData()

Method Summary

All Methods Static Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method	Description
`boolean`	`allProceduresAreCallable()`	Can all the procedures returned by getProcedures be called by the current user?
`boolean`	`allTablesAreSelectable()`	Can all the tables returned by getTable be SELECTed by the current user?
`boolean`	`autoCommitFailureClosesAllResultSets()`	Oracle does not close ResultSets when autocommit fails.
`boolean`	`dataDefinitionCausesTransactionCommit()`	Does a data definition statement within a transaction force the transaction to commit?
`boolean`	`dataDefinitionIgnoredInTransactions()`	Is a data definition statement within a transaction ignored?
`protected String`	`datatypeQuery(OracleDatabaseMetaData.DataTypeSource src)`
`protected String`	`datatypeQuery(OracleDatabaseMetaData.DataTypeSource src, String table)`
`boolean`	`deletesAreDetected(int type)`	Implements JDBC 2.0 DatabaseMetaData.deletesAreDetected.
`boolean`	`doesMaxRowSizeIncludeBlobs()`	Did getMaxRowSize() include LONGVARCHAR and LONGVARBINARY blobs?
`boolean`	`generatedKeyAlwaysReturned()`
`String`	`getAccessBanner()`	Returns the access banner on this connection.
`Object`	`getACProxy()`
`ResultSet`	`getAttributes(String catalog, String schemaPattern, String typeNamePattern, String attributeNamePattern)`	JDBC 3.0 Retrieves a description of the given attribute of the given type for a user-defined type (UDT) that is available in the given schema and catalog.
`String`	`getAuditBanner()`	Returns the audit banner on this connection.
`ResultSet`	`getBestRowIdentifier(String catalog, String schema, String table, int scope, boolean nullable)`	Get a description of a table's optimal set of columns that uniquely identifies a row.
`ResultSet`	`getCatalogs()`	Get the catalog names available in this database.
`String`	`getCatalogSeparator()`	What's the separator between catalog and table name?
`String`	`getCatalogTerm()`	What's the database vendor's preferred term for "catalog"?
`ResultSet`	`getClientInfoProperties()`
`ResultSet`	`getColumnPrivileges(String catalog, String schemaPattern, String tableNamePattern, String columnNamePattern)`	Get a description of the access rights for a table's columns.
`ResultSet`	`getColumns(String catalog, String schemaPattern, String tableNamePattern, String columnNamePattern)`	Get a description of table columns available in a catalog.
`Connection`	`getConnection()`	Implements JDBC 2.0 DatabaseMetaData.getConnection.
`ResultSet`	`getCrossReference(String primaryCatalog, String primarySchema, String primaryTable, String foreignCatalog, String foreignSchema, String foreignTable)`	Get a description of the foreign key columns in the foreign key table that reference the primary key columns of the primary key table (describe how one table imports another's key.) This should normally return a single foreign key/primary key pair (most tables only import a foreign key from a table once.) They are ordered by FKTABLE_CAT, FKTABLE_SCHEM, FKTABLE_NAME, and KEY_SEQ.
`int`	`getDatabaseMajorVersion()`	JDBC 3.0 Retrieves the major version number of the underlying database.
`int`	`getDatabaseMinorVersion()`	JDBC 3.0 Retrieves the minor version number of the underlying database.
`String`	`getDatabaseProductName()`	What's the name of this database product?
`String`	`getDatabaseProductVersion()`	What's the version of this database product?
`int`	`getDefaultTransactionIsolation()`	What's the database's default transaction isolation level? The values are defined in java.sql.Connection.
`int`	`getDriverMajorVersion()`	What's this JDBC driver's major version number?
`static int`	`getDriverMajorVersionInfo()`	Deprecated. -- use standard getDriverMajorVersion()
`int`	`getDriverMinorVersion()`	What's this JDBC driver's minor version number?
`static int`	`getDriverMinorVersionInfo()`	Deprecated. -- use JDBC standard method getDriverMinorVersion
`String`	`getDriverName()`	What's the name of this JDBC driver?
`static String`	`getDriverNameInfo()`	What's the name of this JDBC driver?
`String`	`getDriverVersion()`	What's the version of this JDBC driver?
`static String`	`getDriverVersionInfo()`	Deprecated. -- use standard getDriverVersion()
`ResultSet`	`getExportedKeys(String catalog, String schema, String table)`	Get a description of a foreign key columns that reference a table's primary key columns (the foreign keys exported by a table).
`String`	`getExtraNameCharacters()`	Get all the "extra" characters that can be used in unquoted identifier names (those beyond a-z, 0-9 and _).
`ResultSet`	`getFunctionColumns(String catalog, String schemaPattern, String functionNamePattern, String columnNamePattern)`	Retrieves a description of the given catalog's system or user function parameters and return type.
`ResultSet`	`getFunctions(String catalog, String schemaPattern, String functionNamePattern)`	Return a result set that describes the matching functions.
`protected int`	`getIdentifierLength()`
`String`	`getIdentifierQuoteString()`	What's the string used to quote SQL identifiers? This returns a space " " if identifier quoting isn't supported.
`ResultSet`	`getImportedKeys(String catalog, String schema, String table)`	Get a description of the primary key columns that are referenced by a table's foreign key columns (the primary keys imported by a table).
`ResultSet`	`getIndexInfo(String catalog, String schema, String table, boolean unique, boolean approximate)`	Get a description of a table's indices and statistics.
`int`	`getJDBCMajorVersion()`	JDBC 3.0 Retrieves the major JDBC version number for this driver.
`int`	`getJDBCMinorVersion()`	JDBC 3.0 Retrieves the minor JDBC version number for this driver.
`long`	`getLobMaxLength()`	The max size of a lob on the server for this connection.
`static String`	`getLobPrecision()`	Deprecated.
`int`	`getMaxBinaryLiteralLength()`	How many hex characters can you have in an inline binary literal?
`int`	`getMaxCatalogNameLength()`	What's the maximum length of a catalog name?
`int`	`getMaxCharLiteralLength()`	What's the max length for a character literal?
`int`	`getMaxColumnNameLength()`	What's the limit on column name length?
`int`	`getMaxColumnsInGroupBy()`	What's the maximum number of columns in a "GROUP BY" clause?
`int`	`getMaxColumnsInIndex()`	What's the maximum number of columns allowed in an index?
`int`	`getMaxColumnsInOrderBy()`	What's the maximum number of columns in an "ORDER BY" clause?
`int`	`getMaxColumnsInSelect()`	What's the maximum number of columns in a "SELECT" list?
`int`	`getMaxColumnsInTable()`	What's maximum number of columns in a table?
`int`	`getMaxConnections()`	How many active connections can we have at a time to this database?
`int`	`getMaxCursorNameLength()`	What's the maximum cursor name length?
`int`	`getMaxIndexLength()`	What's the maximum length of an index (in bytes)?
`int`	`getMaxProcedureNameLength()`	What's the maximum length of a procedure name?
`int`	`getMaxRowSize()`	What's the maximum length of a single row?
`int`	`getMaxSchemaNameLength()`	What's the maximum length allowed for a schema name?
`int`	`getMaxStatementLength()`	What's the maximum length of a SQL statement?
`int`	`getMaxStatements()`	How many active statements can we have open at one time to this database?
`int`	`getMaxTableNameLength()`	What's the maximum length of a table name?
`int`	`getMaxTablesInSelect()`	What's the maximum number of tables in a SELECT?
`int`	`getMaxUserNameLength()`	What's the maximum length of a user name?
`String`	`getNumericFunctions()`	Get a comma separated list of math functions.
`OracleTypeMetaData`	`getOracleTypeMetaData(String sqlTypeName)`	Return the type metadata for a named type.
`ResultSet`	`getPrimaryKeys(String catalog, String schema, String table)`	Get a description of a table's primary key columns.
`ResultSet`	`getProcedureColumns(String catalog, String schemaPattern, String procedureNamePattern, String columnNamePattern)`	Get a description of a catalog's stored procedure parameters and result columns.
`ResultSet`	`getProcedures(String catalog, String schemaPattern, String procedureNamePattern)`	Get a description of stored procedures available in a catalog.
`String`	`getProcedureTerm()`	What's the database vendor's preferred term for "procedure"?
`ResultSet`	`getPseudoColumns(String catalog, String schemaPattern, String tableNamePattern, String columnNamePattern)`
`int`	`getResultSetHoldability()`	JDBC 3.0 Retrieves the default holdability of this `ResultSet` object.
`RowIdLifetime`	`getRowIdLifetime()`	Oracle rowids are valid across all sessions.
`ResultSet`	`getSchemas()`	Get the schema names available in this database.
`ResultSet`	`getSchemas(String catalog, String schemaPattern)`	Return the schemas that match the given pattern.
`String`	`getSchemaTerm()`	What's the database vendor's preferred term for "schema"?
`String`	`getSearchStringEscape()`	This is the string that can be used to escape '_' or '%' in the string pattern style catalog search parameters.
`String`	`getSQLKeywords()`	Get a comma separated list of all a database's SQL keywords that are NOT also SQL92 keywords.
`int`	`getSQLStateType()`	JDBC 3.0 Indicates whether the SQLSTATEs returned by `SQLException.getSQLState` is X/Open (now known as Open Group) SQL CLI or SQL99.
`String`	`getStringFunctions()`	Get a comma separated list of string functions.
`ResultSet`	`getSuperTables(String catalog, String schemaPattern, String tableNamePattern)`	JDBC 3.0 Retrieves a description of the table hierarchies defined in a particular schema in this database.
`ResultSet`	`getSuperTypes(String catalog, String schemaPattern, String typeNamePattern)`	JDBC 3.0 Retrieves a description of the user-defined type (UDT) hierarchies defined in a particular schema in this database.
`String`	`getSystemFunctions()`	Get a comma separated list of system functions.
`ResultSet`	`getTablePrivileges(String catalog, String schemaPattern, String tableNamePattern)`	Get a description of the access rights for each table available in a catalog.
`ResultSet`	`getTables(String catalog, String schemaPattern, String tableNamePattern, String[] types)`	Get a description of tables available in a catalog.
`ResultSet`	`getTableTypes()`	Get the table types available in this database.
`String`	`getTimeDateFunctions()`	Get a comma separated list of time and date functions.
`ResultSet`	`getTypeInfo()`	Get a description of all the standard SQL types supported by this database.
`ResultSet`	`getUDTs(String catalog, String schemaPattern, String typeNamePattern, int[] types)`	Implements JDBC 2.0 DatabaseMetaData::getUDTs.
`String`	`getURL()`	What's the url for this database?
`String`	`getUserName()`	What's our user name as known to the database?
`ResultSet`	`getVersionColumns(String catalog, String schema, String table)`	Get a description of a table's columns that are automatically updated when any value in a row is updated.
`protected boolean`	`hasSqlWildcard(String s)`
`boolean`	`insertsAreDetected(int type)`	Implements JDBC 2.0 DatabaseMetaData.insertsAreDetected.
`boolean`	`isCatalogAtStart()`	Does a catalog appear at the start of a qualified table name? (Otherwise it appears at the end)
`boolean`	`isCompatible122OrGreater()`
`boolean`	`isReadOnly()`	Is the database in read-only mode?
`boolean`	`isServerBigSCN()`
`boolean`	`isWrapperFor(Class<?> iface)`	Since this class is not a wrapper, just check to see if this implements the requested interface.
`boolean`	`locatorsUpdateCopy()`	JDBC 3.0
`boolean`	`nullPlusNonNullIsNull()`	Are concatenations between NULL and non-NULL values NULL? A JDBC compliant driver always returns true.
`boolean`	`nullsAreSortedAtEnd()`	Are NULL values sorted at the end regardless of sort order?
`boolean`	`nullsAreSortedAtStart()`	Are NULL values sorted at the start regardless of sort order?
`boolean`	`nullsAreSortedHigh()`	Are NULL values sorted high?
`boolean`	`nullsAreSortedLow()`	Are NULL values sorted low?
`boolean`	`othersDeletesAreVisible(int type)`	Implements JDBC 2.0 DatabaseMetaData..
`boolean`	`othersInsertsAreVisible(int type)`	Implements JDBC 2.0 DatabaseMetaData.othersInsertsAreVisible.
`boolean`	`othersUpdatesAreVisible(int type)`	Implements JDBC 2.0 DatabaseMetaData..
`boolean`	`ownDeletesAreVisible(int type)`	Implements JDBC 2.0 DatabaseMetaData.ownDeletesAreVisible.
`boolean`	`ownInsertsAreVisible(int type)`	Implements JDBC 2.0 DatabaseMetaData.ownInsertsAreVisible.
`boolean`	`ownUpdatesAreVisible(int type)`	Implements JDBC 2.0 DatabaseMetaData.ownUpdatesAreVisible.
`void`	`setACProxy(Object w)`
`boolean`	`storesLowerCaseIdentifiers()`	Does the database treat mixed case unquoted SQL identifiers as case insensitive and store them in lower case?
`boolean`	`storesLowerCaseQuotedIdentifiers()`	Does the database treat mixed case quoted SQL identifiers as case insensitive and store them in lower case?
`boolean`	`storesMixedCaseIdentifiers()`	Does the database treat mixed case unquoted SQL identifiers as case insensitive and store them in mixed case?
`boolean`	`storesMixedCaseQuotedIdentifiers()`	Does the database treat mixed case quoted SQL identifiers as case insensitive and store them in mixed case?
`boolean`	`storesUpperCaseIdentifiers()`	Does the database treat mixed case unquoted SQL identifiers as case insensitive and store them in upper case?
`boolean`	`storesUpperCaseQuotedIdentifiers()`	Does the database treat mixed case quoted SQL identifiers as case insensitive and store them in upper case?
`protected String`	`stripSqlEscapes(String s)`
`boolean`	`supportsAlterTableWithAddColumn()`	Is "ALTER TABLE" with add column supported?
`boolean`	`supportsAlterTableWithDropColumn()`	Is "ALTER TABLE" with drop column supported?
`boolean`	`supportsANSI92EntryLevelSQL()`	Is the ANSI92 entry level SQL grammar supported? All JDBC compliant drivers must return true.
`boolean`	`supportsANSI92FullSQL()`	Is the ANSI92 full SQL grammar supported?
`boolean`	`supportsANSI92IntermediateSQL()`	Is the ANSI92 intermediate SQL grammar supported?
`boolean`	`supportsBatchUpdates()`	Implements JDBC 2.0 DatabaseMetaData::supportBatchUpdates.
`boolean`	`supportsCatalogsInDataManipulation()`	Can a catalog name be used in a data manipulation statement?
`boolean`	`supportsCatalogsInIndexDefinitions()`	Can a catalog name be used in a index definition statement?
`boolean`	`supportsCatalogsInPrivilegeDefinitions()`	Can a catalog name be used in a privilege definition statement?
`boolean`	`supportsCatalogsInProcedureCalls()`	Can a catalog name be used in a procedure call statement?
`boolean`	`supportsCatalogsInTableDefinitions()`	Can a catalog name be used in a table definition statement?
`boolean`	`supportsColumnAliasing()`	Is column aliasing supported?
`boolean`	`supportsConvert()`	Is the CONVERT function between SQL types supported?
`boolean`	`supportsConvert(int fromType, int toType)`	Is CONVERT between the given SQL types supported?
`boolean`	`supportsCoreSQLGrammar()`	Is the ODBC Core SQL grammar supported?
`boolean`	`supportsCorrelatedSubqueries()`	Are correlated subqueries supported? A JDBC compliant driver always returns true.
`boolean`	`supportsDataDefinitionAndDataManipulationTransactions()`	Are both data definition and data manipulation statements within a transaction supported?
`boolean`	`supportsDataManipulationTransactionsOnly()`	Are only data manipulation statements within a transaction supported?
`boolean`	`supportsDifferentTableCorrelationNames()`	If table correlation names are supported, are they restricted to be different from the names of the tables?
`boolean`	`supportsExpressionsInOrderBy()`	Are expressions in "ORDER BY" lists supported?
`boolean`	`supportsExtendedSQLGrammar()`	Is the ODBC Extended SQL grammar supported?
`boolean`	`supportsFullOuterJoins()`	Are full nested outer joins supported?
`boolean`	`supportsGetGeneratedKeys()`	JDBC 3.0 Retrieves whether auto-generated keys can be retrieved after a statement has been executed.
`boolean`	`supportsGroupBy()`	Is some form of "GROUP BY" clause supported?
`boolean`	`supportsGroupByBeyondSelect()`	Can a "GROUP BY" clause add columns not in the SELECT provided it specifies all the columns in the SELECT?
`boolean`	`supportsGroupByUnrelated()`	Can a "GROUP BY" clause use columns not in the SELECT?
`boolean`	`supportsIntegrityEnhancementFacility()`	Is the SQL Integrity Enhancement Facility supported?
`boolean`	`supportsLikeEscapeClause()`	Is the escape character in "LIKE" clauses supported? A JDBC compliant driver always returns true.
`boolean`	`supportsLimitedOuterJoins()`	Is there limited support for outer joins? (This will be true if supportFullOuterJoins is true.)
`boolean`	`supportsMinimumSQLGrammar()`	Is the ODBC Minimum SQL grammar supported? All JDBC compliant drivers must return true.
`boolean`	`supportsMixedCaseIdentifiers()`	Does the database treat mixed case unquoted SQL identifiers as case sensitive and as a result store them in mixed case? A JDBC compliant driver will always return false.
`boolean`	`supportsMixedCaseQuotedIdentifiers()`	Does the database treat mixed case quoted SQL identifiers as case sensitive and as a result store them in mixed case? A JDBC compliant driver will always return false.
`boolean`	`supportsMultipleOpenResults()`	JDBC 3.0 Retrieves whether it is possible to have multiple `ResultSet` objects returned from a `CallableStatement` object simultaneously.
`boolean`	`supportsMultipleResultSets()`	Are multiple ResultSets from a single execute supported?
`boolean`	`supportsMultipleTransactions()`	Can we have multiple transactions open at once (on different connections)?
`boolean`	`supportsNamedParameters()`	JDBC 3.0 Retrieves whether this database supports named parameters to callable statements.
`boolean`	`supportsNonNullableColumns()`	Can columns be defined as non-nullable? A JDBC compliant driver always returns true.
`boolean`	`supportsOpenCursorsAcrossCommit()`	Can cursors remain open across commits?
`boolean`	`supportsOpenCursorsAcrossRollback()`	Can cursors remain open across rollbacks?
`boolean`	`supportsOpenStatementsAcrossCommit()`	Can statements remain open across commits?
`boolean`	`supportsOpenStatementsAcrossRollback()`	Can statements remain open across rollbacks?
`boolean`	`supportsOrderByUnrelated()`	Can an "ORDER BY" clause use columns not in the SELECT?
`boolean`	`supportsOuterJoins()`	Is some form of outer join supported?
`boolean`	`supportsPositionedDelete()`	Is positioned DELETE supported? NOTE: Though Oracle supports positional delete through the use of ROWID positional delete as specified by SQLJ92 standard is not supported which is being followed by JDBC 2.1 API Spec.
`boolean`	`supportsPositionedUpdate()`	Is positioned UPDATE supported? NOTE: Though Oracle supports positional updates through the use of ROWID positional updates as specified by SQLJ92 standard is not supported which is being followed by JDBC 2.1 API Spec.
`boolean`	`supportsResultSetConcurrency(int type, int concurrency)`	Implements JDBC 2.0 DatabaseMetaData.supportsResultSetConcurrency.
`boolean`	`supportsResultSetHoldability(int holdability)`	JDBC 3.0 Retrieves whether this database supports the given result set holdability.
`boolean`	`supportsResultSetType(int type)`	Implements JDBC 2.0 DatabaseMetaData.supportsResultSetType.
`boolean`	`supportsSavepoints()`	JDBC 3.0 Retrieves whether this database supports savepoints.
`boolean`	`supportsSchemasInDataManipulation()`	Can a schema name be used in a data manipulation statement?
`boolean`	`supportsSchemasInIndexDefinitions()`	Can a schema name be used in an index definition statement?
`boolean`	`supportsSchemasInPrivilegeDefinitions()`	Can a schema name be used in a privilege definition statement?
`boolean`	`supportsSchemasInProcedureCalls()`	Can a schema name be used in a procedure call statement?
`boolean`	`supportsSchemasInTableDefinitions()`	Can a schema name be used in a table definition statement?
`boolean`	`supportsSelectForUpdate()`	Is SELECT for UPDATE supported?
`boolean`	`supportsSharding()`	Retrieves whether this database supports sharding.
`boolean`	`supportsStatementPooling()`	JDBC 3.0
`boolean`	`supportsStoredFunctionsUsingCallSyntax()`	Oracle supports using the JDBC escape syntax to call PLSQL functions.
`boolean`	`supportsStoredProcedures()`	Are stored procedure calls using the stored procedure escape syntax supported?
`boolean`	`supportsSubqueriesInComparisons()`	Are subqueries in comparison expressions supported? A JDBC compliant driver always returns true.
`boolean`	`supportsSubqueriesInExists()`	Are subqueries in exists expressions supported? A JDBC compliant driver always returns true.
`boolean`	`supportsSubqueriesInIns()`	Are subqueries in "in" statements supported? A JDBC compliant driver always returns true.
`boolean`	`supportsSubqueriesInQuantifieds()`	Are subqueries in quantified expressions supported? A JDBC compliant driver always returns true.
`boolean`	`supportsTableCorrelationNames()`	Are table correlation names supported? A JDBC compliant driver always returns true.
`boolean`	`supportsTransactionIsolationLevel(int level)`	Does the database support the given transaction isolation level?
`boolean`	`supportsTransactions()`	Are transactions supported? If not, commit is a noop and the isolation level is TRANSACTION_NONE.
`boolean`	`supportsUnion()`	Is SQL UNION supported?
`boolean`	`supportsUnionAll()`	Is SQL UNION ALL supported?
`<T> T`	`unwrap(Class<T> iface)`	Since this class is not a wrapper, just check to see if this implements the requested interface.
`boolean`	`updatesAreDetected(int type)`	Implements JDBC 2.0 DatabaseMetaData.updatesAreDetected.
`boolean`	`usesLocalFilePerTable()`	Does the database use a file for each table?
`boolean`	`usesLocalFiles()`	Does the database store tables in a local file?

Methods inherited from interface java.sql.DatabaseMetaData
getMaxLogicalLobSize, supportsRefCursors

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - connection
```
protected oracle.jdbc.internal.OracleConnection connection
```
  - sqlWildcardRegex
```
protected static final String sqlWildcardRegex
```
    See Also:
    
    Constant Field Values
  - sqlWildcardPattern
```
protected static Pattern sqlWildcardPattern
```
  - sqlEscapeRegex
```
protected static final String sqlEscapeRegex
```
    See Also:
    
    Constant Field Values
  - sqlEscapePattern
```
protected static Pattern sqlEscapePattern
```
  - acProxy
```
protected Object acProxy
```
- Constructor Detail
  - OracleDatabaseMetaData
```
public OracleDatabaseMetaData(OracleConnection conn)
```
    Deprecated.
    -- Please use the factory method java.sql.Connection.getMetaData()
- Method Detail
  - allProceduresAreCallable
```
public boolean allProceduresAreCallable()
                                 throws SQLException
```
    Can all the procedures returned by getProcedures be called by the current user?
    
    Specified by:
    
    allProceduresAreCallable in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - allTablesAreSelectable
```
public boolean allTablesAreSelectable()
                               throws SQLException
```
    Can all the tables returned by getTable be SELECTed by the current user?
    
    Specified by:
    
    allTablesAreSelectable in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - getURL
```
public String getURL()
              throws SQLException
```
    What's the url for this database?
    
    Specified by:
    
    getURL in interface DatabaseMetaData
    
    Returns:
    
    the url or null if it can't be generated
    
    Throws:
    
    SQLException
  - getUserName
```
public String getUserName()
                   throws SQLException
```
    What's our user name as known to the database?
    
    Specified by:
    
    getUserName in interface DatabaseMetaData
    
    Returns:
    
    our database user name
    
    Throws:
    
    SQLException
  - isReadOnly
```
public boolean isReadOnly()
                   throws SQLException
```
    Is the database in read-only mode?
    
    Specified by:
    
    isReadOnly in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - nullsAreSortedHigh
```
public boolean nullsAreSortedHigh()
                           throws SQLException
```
    Are NULL values sorted high?
    
    Specified by:
    
    nullsAreSortedHigh in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - nullsAreSortedLow
```
public boolean nullsAreSortedLow()
                          throws SQLException
```
    Are NULL values sorted low?
    
    Specified by:
    
    nullsAreSortedLow in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - nullsAreSortedAtStart
```
public boolean nullsAreSortedAtStart()
                              throws SQLException
```
    Are NULL values sorted at the start regardless of sort order?
    
    Specified by:
    
    nullsAreSortedAtStart in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - nullsAreSortedAtEnd
```
public boolean nullsAreSortedAtEnd()
                            throws SQLException
```
    Are NULL values sorted at the end regardless of sort order?
    
    Specified by:
    
    nullsAreSortedAtEnd in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - getDatabaseProductName
```
public String getDatabaseProductName()
                              throws SQLException
```
    What's the name of this database product?
    
    Specified by:
    
    getDatabaseProductName in interface DatabaseMetaData
    
    Returns:
    
    database product name
    
    Throws:
    
    SQLException
  - getDatabaseProductVersion
```
public String getDatabaseProductVersion()
                                 throws SQLException
```
    What's the version of this database product?
    
    Specified by:
    
    getDatabaseProductVersion in interface DatabaseMetaData
    
    Returns:
    
    database version
    
    Throws:
    
    SQLException
  - getDriverName
```
public String getDriverName()
                     throws SQLException
```
    What's the name of this JDBC driver?
    
    Specified by:
    
    getDriverName in interface DatabaseMetaData
    
    Returns:
    
    JDBC driver name
    
    Throws:
    
    SQLException
  - getDriverVersion
```
public String getDriverVersion()
                        throws SQLException
```
    What's the version of this JDBC driver?
    
    Specified by:
    
    getDriverVersion in interface DatabaseMetaData
    
    Returns:
    
    JDBC driver version
    
    Throws:
    
    SQLException
  - getDriverMajorVersion
```
public int getDriverMajorVersion()
```
    What's this JDBC driver's major version number?
    
    Specified by:
    
    getDriverMajorVersion in interface DatabaseMetaData
    
    Returns:
    
    JDBC driver major version
  - getDriverMinorVersion
```
public int getDriverMinorVersion()
```
    What's this JDBC driver's minor version number?
    
    Specified by:
    
    getDriverMinorVersion in interface DatabaseMetaData
    
    Returns:
    
    JDBC driver minor version number
  - usesLocalFiles
```
public boolean usesLocalFiles()
                       throws SQLException
```
    Does the database store tables in a local file?
    
    Specified by:
    
    usesLocalFiles in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - usesLocalFilePerTable
```
public boolean usesLocalFilePerTable()
                              throws SQLException
```
    Does the database use a file for each table?
    
    Specified by:
    
    usesLocalFilePerTable in interface DatabaseMetaData
    
    Returns:
    
    true if the database uses a local file for each table
    
    Throws:
    
    SQLException
  - supportsMixedCaseIdentifiers
```
public boolean supportsMixedCaseIdentifiers()
                                     throws SQLException
```
    Does the database treat mixed case unquoted SQL identifiers as case sensitive and as a result store them in mixed case? A JDBC compliant driver will always return false.
    
    Specified by:
    
    supportsMixedCaseIdentifiers in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - storesUpperCaseIdentifiers
```
public boolean storesUpperCaseIdentifiers()
                                   throws SQLException
```
    Does the database treat mixed case unquoted SQL identifiers as case insensitive and store them in upper case?
    
    Specified by:
    
    storesUpperCaseIdentifiers in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - storesLowerCaseIdentifiers
```
public boolean storesLowerCaseIdentifiers()
                                   throws SQLException
```
    Does the database treat mixed case unquoted SQL identifiers as case insensitive and store them in lower case?
    
    Specified by:
    
    storesLowerCaseIdentifiers in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - storesMixedCaseIdentifiers
```
public boolean storesMixedCaseIdentifiers()
                                   throws SQLException
```
    Does the database treat mixed case unquoted SQL identifiers as case insensitive and store them in mixed case?
    
    Specified by:
    
    storesMixedCaseIdentifiers in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsMixedCaseQuotedIdentifiers
```
public boolean supportsMixedCaseQuotedIdentifiers()
                                           throws SQLException
```
    Does the database treat mixed case quoted SQL identifiers as case sensitive and as a result store them in mixed case? A JDBC compliant driver will always return false.
    
    Specified by:
    
    supportsMixedCaseQuotedIdentifiers in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - storesUpperCaseQuotedIdentifiers
```
public boolean storesUpperCaseQuotedIdentifiers()
                                         throws SQLException
```
    Does the database treat mixed case quoted SQL identifiers as case insensitive and store them in upper case?
    
    Specified by:
    
    storesUpperCaseQuotedIdentifiers in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - storesLowerCaseQuotedIdentifiers
```
public boolean storesLowerCaseQuotedIdentifiers()
                                         throws SQLException
```
    Does the database treat mixed case quoted SQL identifiers as case insensitive and store them in lower case?
    
    Specified by:
    
    storesLowerCaseQuotedIdentifiers in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - storesMixedCaseQuotedIdentifiers
```
public boolean storesMixedCaseQuotedIdentifiers()
                                         throws SQLException
```
    Does the database treat mixed case quoted SQL identifiers as case insensitive and store them in mixed case?
    
    Specified by:
    
    storesMixedCaseQuotedIdentifiers in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - getIdentifierQuoteString
```
public String getIdentifierQuoteString()
                                throws SQLException
```
    What's the string used to quote SQL identifiers? This returns a space " " if identifier quoting isn't supported. A JDBC compliant driver always uses a double quote character.
    
    Specified by:
    
    getIdentifierQuoteString in interface DatabaseMetaData
    
    Returns:
    
    the quoting string
    
    Throws:
    
    SQLException
  - getSQLKeywords
```
public String getSQLKeywords()
                      throws SQLException
```
    Get a comma separated list of all a database's SQL keywords that are NOT also SQL92 keywords.
    
    Specified by:
    
    getSQLKeywords in interface DatabaseMetaData
    
    Returns:
    
    the list
    
    Throws:
    
    SQLException
  - getNumericFunctions
```
public String getNumericFunctions()
                           throws SQLException
```
    Get a comma separated list of math functions. The following are supported
    - ABS
    - ACOS
    - ASIN
    - ATAN
    - ATAN2
    - CEILING
    - COS
    - EXP
    - FLOOR
    - LOG
    - LOG10
    - MOD
    - PI
    - POWER
    - ROUND
    - SIGN
    - SIN
    - SQRT
    - TAN
    - TRUNCATE
    Specified by:
    
    getNumericFunctions in interface DatabaseMetaData
    
    Returns:
    
    the list
    
    Throws:
    
    SQLException
  - getStringFunctions
```
public String getStringFunctions()
                          throws SQLException
```
    Get a comma separated list of string functions. The following are supported
    - ASCII
    - CHAR
    - CONCAT
    - LCASE
    - LENGTH
    - LTRIM
    - REPLACE
    - RTRIM
    - SOUNDEX
    - SUBSTRING
    - UCASE
    In addition, the following are supported in a JDBC 4.0 environment
    - OCTET_LENGTH
    - CHAR_LENGTH
    - CHARACTER_LENGTH
    Specified by:
    
    getStringFunctions in interface DatabaseMetaData
    
    Returns:
    
    the list
    
    Throws:
    
    SQLException
  - getSystemFunctions
```
public String getSystemFunctions()
                          throws SQLException
```
    Get a comma separated list of system functions. The following are supported
    - USER
    Specified by:
    
    getSystemFunctions in interface DatabaseMetaData
    
    Returns:
    
    the list
    
    Throws:
    
    SQLException
  - getTimeDateFunctions
```
public String getTimeDateFunctions()
                            throws SQLException
```
    Get a comma separated list of time and date functions. The following are supported
    - CURDATE
    - HOUR
    - MINUTE
    - MONTH
    - SECOND
    - YEAR
    In addition, the following are supported in a JDBC 4.0 environment.
    - CURRENT_DATE
    - CURRENT_TIMESTAMP
    - EXTRACT
    Specified by:
    
    getTimeDateFunctions in interface DatabaseMetaData
    
    Returns:
    
    the list
    
    Throws:
    
    SQLException
  - getSearchStringEscape
```
public String getSearchStringEscape()
                             throws SQLException
```
    This is the string that can be used to escape '_' or '%' in the string pattern style catalog search parameters.
    The '_' character represents any single character.
    
    The '%' character represents any sequence of zero or more characters.
    
    Specified by:
    
    getSearchStringEscape in interface DatabaseMetaData
    
    Returns:
    
    the string used to escape wildcard characters
    
    Throws:
    
    SQLException
  - getExtraNameCharacters
```
public String getExtraNameCharacters()
                              throws SQLException
```
    Get all the "extra" characters that can be used in unquoted identifier names (those beyond a-z, 0-9 and _).
    
    Specified by:
    
    getExtraNameCharacters in interface DatabaseMetaData
    
    Returns:
    
    the string containing the extra characters
    
    Throws:
    
    SQLException
  - supportsAlterTableWithAddColumn
```
public boolean supportsAlterTableWithAddColumn()
                                        throws SQLException
```
    Is "ALTER TABLE" with add column supported?
    
    Specified by:
    
    supportsAlterTableWithAddColumn in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsAlterTableWithDropColumn
```
public boolean supportsAlterTableWithDropColumn()
                                         throws SQLException
```
    Is "ALTER TABLE" with drop column supported?
    
    Specified by:
    
    supportsAlterTableWithDropColumn in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsColumnAliasing
```
public boolean supportsColumnAliasing()
                               throws SQLException
```
    Is column aliasing supported?
    If so, the SQL AS clause can be used to provide names for computed columns or to provide alias names for columns as required. A JDBC compliant driver always returns true.
    
    Specified by:
    
    supportsColumnAliasing in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - nullPlusNonNullIsNull
```
public boolean nullPlusNonNullIsNull()
                              throws SQLException
```
    Are concatenations between NULL and non-NULL values NULL? A JDBC compliant driver always returns true.
    
    Specified by:
    
    nullPlusNonNullIsNull in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsConvert
```
public boolean supportsConvert()
                        throws SQLException
```
    Is the CONVERT function between SQL types supported?
    
    Specified by:
    
    supportsConvert in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsConvert
```
public boolean supportsConvert(int fromType,
                               int toType)
                        throws SQLException
```
    Is CONVERT between the given SQL types supported?
    
    Specified by:
    
    supportsConvert in interface DatabaseMetaData
    
    Parameters:
    
    fromType - the type to convert from
    
    toType - the type to convert to
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
    
    See Also:
    
    Types
  - supportsTableCorrelationNames
```
public boolean supportsTableCorrelationNames()
                                      throws SQLException
```
    Are table correlation names supported? A JDBC compliant driver always returns true.
    
    Specified by:
    
    supportsTableCorrelationNames in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsDifferentTableCorrelationNames
```
public boolean supportsDifferentTableCorrelationNames()
                                               throws SQLException
```
    If table correlation names are supported, are they restricted to be different from the names of the tables?
    
    Specified by:
    
    supportsDifferentTableCorrelationNames in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsExpressionsInOrderBy
```
public boolean supportsExpressionsInOrderBy()
                                     throws SQLException
```
    Are expressions in "ORDER BY" lists supported?
    
    Specified by:
    
    supportsExpressionsInOrderBy in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsOrderByUnrelated
```
public boolean supportsOrderByUnrelated()
                                 throws SQLException
```
    Can an "ORDER BY" clause use columns not in the SELECT?
    
    Specified by:
    
    supportsOrderByUnrelated in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsGroupBy
```
public boolean supportsGroupBy()
                        throws SQLException
```
    Is some form of "GROUP BY" clause supported?
    
    Specified by:
    
    supportsGroupBy in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsGroupByUnrelated
```
public boolean supportsGroupByUnrelated()
                                 throws SQLException
```
    Can a "GROUP BY" clause use columns not in the SELECT?
    
    Specified by:
    
    supportsGroupByUnrelated in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsGroupByBeyondSelect
```
public boolean supportsGroupByBeyondSelect()
                                    throws SQLException
```
    Can a "GROUP BY" clause add columns not in the SELECT provided it specifies all the columns in the SELECT?
    
    Specified by:
    
    supportsGroupByBeyondSelect in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsLikeEscapeClause
```
public boolean supportsLikeEscapeClause()
                                 throws SQLException
```
    Is the escape character in "LIKE" clauses supported? A JDBC compliant driver always returns true.
    
    Specified by:
    
    supportsLikeEscapeClause in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsMultipleResultSets
```
public boolean supportsMultipleResultSets()
                                   throws SQLException
```
    Are multiple ResultSets from a single execute supported?
    
    Specified by:
    
    supportsMultipleResultSets in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsMultipleTransactions
```
public boolean supportsMultipleTransactions()
                                     throws SQLException
```
    Can we have multiple transactions open at once (on different connections)?
    
    Specified by:
    
    supportsMultipleTransactions in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsNonNullableColumns
```
public boolean supportsNonNullableColumns()
                                   throws SQLException
```
    Can columns be defined as non-nullable? A JDBC compliant driver always returns true.
    
    Specified by:
    
    supportsNonNullableColumns in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsMinimumSQLGrammar
```
public boolean supportsMinimumSQLGrammar()
                                  throws SQLException
```
    Is the ODBC Minimum SQL grammar supported? All JDBC compliant drivers must return true.
    
    Specified by:
    
    supportsMinimumSQLGrammar in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsCoreSQLGrammar
```
public boolean supportsCoreSQLGrammar()
                               throws SQLException
```
    Is the ODBC Core SQL grammar supported?
    
    Specified by:
    
    supportsCoreSQLGrammar in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsExtendedSQLGrammar
```
public boolean supportsExtendedSQLGrammar()
                                   throws SQLException
```
    Is the ODBC Extended SQL grammar supported?
    
    Specified by:
    
    supportsExtendedSQLGrammar in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsANSI92EntryLevelSQL
```
public boolean supportsANSI92EntryLevelSQL()
                                    throws SQLException
```
    Is the ANSI92 entry level SQL grammar supported? All JDBC compliant drivers must return true.
    
    Specified by:
    
    supportsANSI92EntryLevelSQL in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsANSI92IntermediateSQL
```
public boolean supportsANSI92IntermediateSQL()
                                      throws SQLException
```
    Is the ANSI92 intermediate SQL grammar supported?
    
    Specified by:
    
    supportsANSI92IntermediateSQL in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsANSI92FullSQL
```
public boolean supportsANSI92FullSQL()
                              throws SQLException
```
    Is the ANSI92 full SQL grammar supported?
    
    Specified by:
    
    supportsANSI92FullSQL in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsIntegrityEnhancementFacility
```
public boolean supportsIntegrityEnhancementFacility()
                                             throws SQLException
```
    Is the SQL Integrity Enhancement Facility supported?
    
    Specified by:
    
    supportsIntegrityEnhancementFacility in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsOuterJoins
```
public boolean supportsOuterJoins()
                           throws SQLException
```
    Is some form of outer join supported?
    
    Specified by:
    
    supportsOuterJoins in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsFullOuterJoins
```
public boolean supportsFullOuterJoins()
                               throws SQLException
```
    Are full nested outer joins supported?
    
    Specified by:
    
    supportsFullOuterJoins in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsLimitedOuterJoins
```
public boolean supportsLimitedOuterJoins()
                                  throws SQLException
```
    Is there limited support for outer joins? (This will be true if supportFullOuterJoins is true.)
    
    Specified by:
    
    supportsLimitedOuterJoins in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - getSchemaTerm
```
public String getSchemaTerm()
                     throws SQLException
```
    What's the database vendor's preferred term for "schema"?
    
    Specified by:
    
    getSchemaTerm in interface DatabaseMetaData
    
    Returns:
    
    the vendor term
    
    Throws:
    
    SQLException
  - getProcedureTerm
```
public String getProcedureTerm()
                        throws SQLException
```
    What's the database vendor's preferred term for "procedure"?
    
    Specified by:
    
    getProcedureTerm in interface DatabaseMetaData
    
    Returns:
    
    the vendor term
    
    Throws:
    
    SQLException
  - getCatalogTerm
```
public String getCatalogTerm()
                      throws SQLException
```
    What's the database vendor's preferred term for "catalog"?
    
    Specified by:
    
    getCatalogTerm in interface DatabaseMetaData
    
    Returns:
    
    the vendor term
    
    Throws:
    
    SQLException
  - isCatalogAtStart
```
public boolean isCatalogAtStart()
                         throws SQLException
```
    Does a catalog appear at the start of a qualified table name? (Otherwise it appears at the end)
    
    Specified by:
    
    isCatalogAtStart in interface DatabaseMetaData
    
    Returns:
    
    true if it appears at the start
    
    Throws:
    
    SQLException
  - getCatalogSeparator
```
public String getCatalogSeparator()
                           throws SQLException
```
    What's the separator between catalog and table name?
    
    Specified by:
    
    getCatalogSeparator in interface DatabaseMetaData
    
    Returns:
    
    the separator string
    
    Throws:
    
    SQLException
  - supportsSchemasInDataManipulation
```
public boolean supportsSchemasInDataManipulation()
                                          throws SQLException
```
    Can a schema name be used in a data manipulation statement?
    
    Specified by:
    
    supportsSchemasInDataManipulation in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsSchemasInProcedureCalls
```
public boolean supportsSchemasInProcedureCalls()
                                        throws SQLException
```
    Can a schema name be used in a procedure call statement?
    
    Specified by:
    
    supportsSchemasInProcedureCalls in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsSchemasInTableDefinitions
```
public boolean supportsSchemasInTableDefinitions()
                                          throws SQLException
```
    Can a schema name be used in a table definition statement?
    
    Specified by:
    
    supportsSchemasInTableDefinitions in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsSchemasInIndexDefinitions
```
public boolean supportsSchemasInIndexDefinitions()
                                          throws SQLException
```
    Can a schema name be used in an index definition statement?
    
    Specified by:
    
    supportsSchemasInIndexDefinitions in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsSchemasInPrivilegeDefinitions
```
public boolean supportsSchemasInPrivilegeDefinitions()
                                              throws SQLException
```
    Can a schema name be used in a privilege definition statement?
    
    Specified by:
    
    supportsSchemasInPrivilegeDefinitions in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsCatalogsInDataManipulation
```
public boolean supportsCatalogsInDataManipulation()
                                           throws SQLException
```
    Can a catalog name be used in a data manipulation statement?
    
    Specified by:
    
    supportsCatalogsInDataManipulation in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsCatalogsInProcedureCalls
```
public boolean supportsCatalogsInProcedureCalls()
                                         throws SQLException
```
    Can a catalog name be used in a procedure call statement?
    
    Specified by:
    
    supportsCatalogsInProcedureCalls in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsCatalogsInTableDefinitions
```
public boolean supportsCatalogsInTableDefinitions()
                                           throws SQLException
```
    Can a catalog name be used in a table definition statement?
    
    Specified by:
    
    supportsCatalogsInTableDefinitions in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsCatalogsInIndexDefinitions
```
public boolean supportsCatalogsInIndexDefinitions()
                                           throws SQLException
```
    Can a catalog name be used in a index definition statement?
    
    Specified by:
    
    supportsCatalogsInIndexDefinitions in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsCatalogsInPrivilegeDefinitions
```
public boolean supportsCatalogsInPrivilegeDefinitions()
                                               throws SQLException
```
    Can a catalog name be used in a privilege definition statement?
    
    Specified by:
    
    supportsCatalogsInPrivilegeDefinitions in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsPositionedDelete
```
public boolean supportsPositionedDelete()
                                 throws SQLException
```
    Is positioned DELETE supported? NOTE: Though Oracle supports positional delete through the use of ROWID positional delete as specified by SQLJ92 standard is not supported which is being followed by JDBC 2.1 API Spec.
    
    Specified by:
    
    supportsPositionedDelete in interface DatabaseMetaData
    
    Returns:
    
    false
    
    Throws:
    
    SQLException
  - supportsPositionedUpdate
```
public boolean supportsPositionedUpdate()
                                 throws SQLException
```
    Is positioned UPDATE supported? NOTE: Though Oracle supports positional updates through the use of ROWID positional updates as specified by SQLJ92 standard is not supported which is being followed by JDBC 2.1 API Spec.
    
    Specified by:
    
    supportsPositionedUpdate in interface DatabaseMetaData
    
    Returns:
    
    false
    
    Throws:
    
    SQLException
  - supportsSelectForUpdate
```
public boolean supportsSelectForUpdate()
                                throws SQLException
```
    Is SELECT for UPDATE supported?
    
    Specified by:
    
    supportsSelectForUpdate in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsStoredProcedures
```
public boolean supportsStoredProcedures()
                                 throws SQLException
```
    Are stored procedure calls using the stored procedure escape syntax supported?
    
    Specified by:
    
    supportsStoredProcedures in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsSubqueriesInComparisons
```
public boolean supportsSubqueriesInComparisons()
                                        throws SQLException
```
    Are subqueries in comparison expressions supported? A JDBC compliant driver always returns true.
    
    Specified by:
    
    supportsSubqueriesInComparisons in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsSubqueriesInExists
```
public boolean supportsSubqueriesInExists()
                                   throws SQLException
```
    Are subqueries in exists expressions supported? A JDBC compliant driver always returns true.
    
    Specified by:
    
    supportsSubqueriesInExists in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsSubqueriesInIns
```
public boolean supportsSubqueriesInIns()
                                throws SQLException
```
    Are subqueries in "in" statements supported? A JDBC compliant driver always returns true.
    
    Specified by:
    
    supportsSubqueriesInIns in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsSubqueriesInQuantifieds
```
public boolean supportsSubqueriesInQuantifieds()
                                        throws SQLException
```
    Are subqueries in quantified expressions supported? A JDBC compliant driver always returns true.
    
    Specified by:
    
    supportsSubqueriesInQuantifieds in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsCorrelatedSubqueries
```
public boolean supportsCorrelatedSubqueries()
                                     throws SQLException
```
    Are correlated subqueries supported? A JDBC compliant driver always returns true.
    
    Specified by:
    
    supportsCorrelatedSubqueries in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsUnion
```
public boolean supportsUnion()
                      throws SQLException
```
    Is SQL UNION supported?
    
    Specified by:
    
    supportsUnion in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsUnionAll
```
public boolean supportsUnionAll()
                         throws SQLException
```
    Is SQL UNION ALL supported?
    
    Specified by:
    
    supportsUnionAll in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsOpenCursorsAcrossCommit
```
public boolean supportsOpenCursorsAcrossCommit()
                                        throws SQLException
```
    Can cursors remain open across commits?
    
    Specified by:
    
    supportsOpenCursorsAcrossCommit in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
    
    See Also:
    
    Connection#disableAutoClose
  - supportsOpenCursorsAcrossRollback
```
public boolean supportsOpenCursorsAcrossRollback()
                                          throws SQLException
```
    Can cursors remain open across rollbacks?
    
    Specified by:
    
    supportsOpenCursorsAcrossRollback in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
    
    See Also:
    
    Connection#disableAutoClose
  - supportsOpenStatementsAcrossCommit
```
public boolean supportsOpenStatementsAcrossCommit()
                                           throws SQLException
```
    Can statements remain open across commits?
    
    Specified by:
    
    supportsOpenStatementsAcrossCommit in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
    
    See Also:
    
    Connection#disableAutoClose
  - supportsOpenStatementsAcrossRollback
```
public boolean supportsOpenStatementsAcrossRollback()
                                             throws SQLException
```
    Can statements remain open across rollbacks?
    
    Specified by:
    
    supportsOpenStatementsAcrossRollback in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
    
    See Also:
    
    Connection#disableAutoClose
  - supportsSharding
```
public boolean supportsSharding()
                         throws SQLException
```
    Retrieves whether this database supports sharding.
    
    Specified by:
    
    supportsSharding in interface DatabaseMetaData
    
    Returns:
    
    true
    
    Throws:
    
    SQLException
    
    Since:
    
    1.9
  - getMaxBinaryLiteralLength
```
public int getMaxBinaryLiteralLength()
                              throws SQLException
```
    How many hex characters can you have in an inline binary literal?
    
    Specified by:
    
    getMaxBinaryLiteralLength in interface DatabaseMetaData
    
    Returns:
    
    max literal length
    
    Throws:
    
    SQLException
  - getMaxCharLiteralLength
```
public int getMaxCharLiteralLength()
                            throws SQLException
```
    What's the max length for a character literal?
    
    Specified by:
    
    getMaxCharLiteralLength in interface DatabaseMetaData
    
    Returns:
    
    max literal length
    
    Throws:
    
    SQLException
  - getIdentifierLength
```
protected int getIdentifierLength()
                           throws SQLException
```
    Throws:
    
    SQLException
  - getMaxColumnNameLength
```
public int getMaxColumnNameLength()
                           throws SQLException
```
    What's the limit on column name length?
    
    Specified by:
    
    getMaxColumnNameLength in interface DatabaseMetaData
    
    Returns:
    
    max literal length
    
    Throws:
    
    SQLException
  - getMaxColumnsInGroupBy
```
public int getMaxColumnsInGroupBy()
                           throws SQLException
```
    What's the maximum number of columns in a "GROUP BY" clause?
    
    Specified by:
    
    getMaxColumnsInGroupBy in interface DatabaseMetaData
    
    Returns:
    
    max number of columns
    
    Throws:
    
    SQLException
  - getMaxColumnsInIndex
```
public int getMaxColumnsInIndex()
                         throws SQLException
```
    What's the maximum number of columns allowed in an index?
    
    Specified by:
    
    getMaxColumnsInIndex in interface DatabaseMetaData
    
    Returns:
    
    max columns
    
    Throws:
    
    SQLException
  - getMaxColumnsInOrderBy
```
public int getMaxColumnsInOrderBy()
                           throws SQLException
```
    What's the maximum number of columns in an "ORDER BY" clause?
    
    Specified by:
    
    getMaxColumnsInOrderBy in interface DatabaseMetaData
    
    Returns:
    
    max columns
    
    Throws:
    
    SQLException
  - getMaxColumnsInSelect
```
public int getMaxColumnsInSelect()
                          throws SQLException
```
    What's the maximum number of columns in a "SELECT" list?
    
    Specified by:
    
    getMaxColumnsInSelect in interface DatabaseMetaData
    
    Returns:
    
    max columns
    
    Throws:
    
    SQLException
  - getMaxColumnsInTable
```
public int getMaxColumnsInTable()
                         throws SQLException
```
    What's maximum number of columns in a table?
    
    Specified by:
    
    getMaxColumnsInTable in interface DatabaseMetaData
    
    Returns:
    
    max columns
    
    Throws:
    
    SQLException
  - getMaxConnections
```
public int getMaxConnections()
                      throws SQLException
```
    How many active connections can we have at a time to this database?
    
    Specified by:
    
    getMaxConnections in interface DatabaseMetaData
    
    Returns:
    
    max connections
    
    Throws:
    
    SQLException
  - getMaxCursorNameLength
```
public int getMaxCursorNameLength()
                           throws SQLException
```
    What's the maximum cursor name length?
    
    Specified by:
    
    getMaxCursorNameLength in interface DatabaseMetaData
    
    Returns:
    
    max cursor name length in bytes
    
    Throws:
    
    SQLException
  - getMaxIndexLength
```
public int getMaxIndexLength()
                      throws SQLException
```
    What's the maximum length of an index (in bytes)?
    
    Specified by:
    
    getMaxIndexLength in interface DatabaseMetaData
    
    Returns:
    
    max index length in bytes
    
    Throws:
    
    SQLException
  - getMaxSchemaNameLength
```
public int getMaxSchemaNameLength()
                           throws SQLException
```
    What's the maximum length allowed for a schema name?
    
    Specified by:
    
    getMaxSchemaNameLength in interface DatabaseMetaData
    
    Returns:
    
    max name length in bytes
    
    Throws:
    
    SQLException
  - getMaxProcedureNameLength
```
public int getMaxProcedureNameLength()
                              throws SQLException
```
    What's the maximum length of a procedure name?
    
    Specified by:
    
    getMaxProcedureNameLength in interface DatabaseMetaData
    
    Returns:
    
    max name length in bytes
    
    Throws:
    
    SQLException
  - getMaxCatalogNameLength
```
public int getMaxCatalogNameLength()
                            throws SQLException
```
    What's the maximum length of a catalog name?
    
    Specified by:
    
    getMaxCatalogNameLength in interface DatabaseMetaData
    
    Returns:
    
    max name length in bytes
    
    Throws:
    
    SQLException
  - getMaxRowSize
```
public int getMaxRowSize()
                  throws SQLException
```
    What's the maximum length of a single row?
    
    Specified by:
    
    getMaxRowSize in interface DatabaseMetaData
    
    Returns:
    
    max row size in bytes
    
    Throws:
    
    SQLException
  - doesMaxRowSizeIncludeBlobs
```
public boolean doesMaxRowSizeIncludeBlobs()
                                   throws SQLException
```
    Did getMaxRowSize() include LONGVARCHAR and LONGVARBINARY blobs?
    
    Specified by:
    
    doesMaxRowSizeIncludeBlobs in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - getMaxStatementLength
```
public int getMaxStatementLength()
                          throws SQLException
```
    What's the maximum length of a SQL statement?
    
    Specified by:
    
    getMaxStatementLength in interface DatabaseMetaData
    
    Returns:
    
    max length in bytes
    
    Throws:
    
    SQLException
  - getMaxStatements
```
public int getMaxStatements()
                     throws SQLException
```
    How many active statements can we have open at one time to this database?
    
    Specified by:
    
    getMaxStatements in interface DatabaseMetaData
    
    Returns:
    
    the maximum
    
    Throws:
    
    SQLException
  - getMaxTableNameLength
```
public int getMaxTableNameLength()
                          throws SQLException
```
    What's the maximum length of a table name?
    
    Specified by:
    
    getMaxTableNameLength in interface DatabaseMetaData
    
    Returns:
    
    max name length in bytes
    
    Throws:
    
    SQLException
  - getMaxTablesInSelect
```
public int getMaxTablesInSelect()
                         throws SQLException
```
    What's the maximum number of tables in a SELECT?
    
    Specified by:
    
    getMaxTablesInSelect in interface DatabaseMetaData
    
    Returns:
    
    the maximum
    
    Throws:
    
    SQLException
  - getMaxUserNameLength
```
public int getMaxUserNameLength()
                         throws SQLException
```
    What's the maximum length of a user name?
    
    Specified by:
    
    getMaxUserNameLength in interface DatabaseMetaData
    
    Returns:
    
    max name length in bytes
    
    Throws:
    
    SQLException
  - getDefaultTransactionIsolation
```
public int getDefaultTransactionIsolation()
                                   throws SQLException
```
    What's the database's default transaction isolation level? The values are defined in java.sql.Connection.
    
    Specified by:
    
    getDefaultTransactionIsolation in interface DatabaseMetaData
    
    Returns:
    
    the default isolation level
    
    Throws:
    
    SQLException
    
    See Also:
    
    Connection
  - supportsTransactions
```
public boolean supportsTransactions()
                             throws SQLException
```
    Are transactions supported? If not, commit is a noop and the isolation level is TRANSACTION_NONE.
    
    Specified by:
    
    supportsTransactions in interface DatabaseMetaData
    
    Returns:
    
    true if transactions are supported
    
    Throws:
    
    SQLException
  - supportsTransactionIsolationLevel
```
public boolean supportsTransactionIsolationLevel(int level)
                                          throws SQLException
```
    Does the database support the given transaction isolation level?
    
    Specified by:
    
    supportsTransactionIsolationLevel in interface DatabaseMetaData
    
    Parameters:
    
    level - the values are defined in java.sql.Connection
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
    
    See Also:
    
    Connection
  - supportsDataDefinitionAndDataManipulationTransactions
```
public boolean supportsDataDefinitionAndDataManipulationTransactions()
                                                              throws SQLException
```
    Are both data definition and data manipulation statements within a transaction supported?
    
    Specified by:
    
    supportsDataDefinitionAndDataManipulationTransactions in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - supportsDataManipulationTransactionsOnly
```
public boolean supportsDataManipulationTransactionsOnly()
                                                 throws SQLException
```
    Are only data manipulation statements within a transaction supported?
    
    Specified by:
    
    supportsDataManipulationTransactionsOnly in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - dataDefinitionCausesTransactionCommit
```
public boolean dataDefinitionCausesTransactionCommit()
                                              throws SQLException
```
    Does a data definition statement within a transaction force the transaction to commit?
    
    Specified by:
    
    dataDefinitionCausesTransactionCommit in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - dataDefinitionIgnoredInTransactions
```
public boolean dataDefinitionIgnoredInTransactions()
                                            throws SQLException
```
    Is a data definition statement within a transaction ignored?
    
    Specified by:
    
    dataDefinitionIgnoredInTransactions in interface DatabaseMetaData
    
    Returns:
    
    true if so
    
    Throws:
    
    SQLException
  - getProcedures
```
public ResultSet getProcedures(String catalog,
                               String schemaPattern,
                               String procedureNamePattern)
                        throws SQLException
```
    Get a description of stored procedures available in a catalog.
    Only procedure descriptions matching the schema and procedure name criteria are returned. They are ordered by PROCEDURE_SCHEM, and PROCEDURE_NAME.
    
    Each procedure description has the the following columns:
    1. PROCEDURE_CAT String => procedure catalog (may be null)
    2. PROCEDURE_SCHEM String => procedure schema (may be null)
    3. PROCEDURE_NAME String => procedure name
    4. reserved for future use
    5. reserved for future use
    6. reserved for future use
    7. REMARKS String => explanatory comment on the procedure
    8. PROCEDURE_TYPE short => kind of procedure:
      
      procedureResultUnknown - May return a result
      
      procedureNoResult - Does not return a result
      
      procedureReturnsResult - Returns a result
    Specified by:
    
    getProcedures in interface DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schemaPattern - a schema name pattern; "" retrieves those without a schema
    
    procedureNamePattern - a procedure name pattern
    
    Returns:
    
    ResultSet each row is a procedure description
    
    Throws:
    
    SQLException
    
    See Also:
    
    getSearchStringEscape()
  - getProcedureColumns
```
public ResultSet getProcedureColumns(String catalog,
                                     String schemaPattern,
                                     String procedureNamePattern,
                                     String columnNamePattern)
                              throws SQLException
```
    Get a description of a catalog's stored procedure parameters and result columns.
    Only descriptions matching the schema, procedure and parameter name criteria are returned. They are ordered by PROCEDURE_SCHEM and PROCEDURE_NAME. Within this, the return value, if any, is first. Next are the parameter descriptions in call order. The column descriptions follow in column number order.
    
    Each row in the ResultSet is a parameter desription or column description with the following fields:
    1. PROCEDURE_CAT String => procedure catalog (may be null) Interpreted as the Oracle Package name.
    2. PROCEDURE_SCHEM String => procedure schema (may be null)
    3. PROCEDURE_NAME String => procedure name
    4. COLUMN_NAME String => column/parameter name
    5. COLUMN_TYPE Short => kind of column/parameter:
      
      procedureColumnUnknown - nobody knows
      
      procedureColumnIn - IN parameter
      
      procedureColumnInOut - INOUT parameter
      
      procedureColumnOut - OUT parameter
      
      procedureColumnReturn - procedure return value
      
      procedureColumnResult - result column in ResultSet
    6. DATA_TYPE short => SQL type from java.sql.Types
    7. TYPE_NAME String => SQL type name
    8. PRECISION int => precision
    9. LENGTH int => length in bytes of data
    10. SCALE short => scale
    11. RADIX short => radix
    12. NULLABLE short => can it contain NULL?
      
      procedureNoNulls - does not allow NULL values
      
      procedureNullable - allows NULL values
      
      procedureNullableUnknown - nullability unknown
    13. REMARKS String => comment describing parameter/column
    Note: Some databases may not return the column descriptions for a procedure. Additional columns beyond REMARKS can be defined by the database. These additional columns MUST be accessed by name, not by index.
    
    Oracle Specific:
    
    The catalog argument is taken to mean a package name. Note that this is not a pattern and wildcards are not supported.
    
    Database synonyms may be defined (amoung other things) for a package, for an unpackaged procedure or for a synonym. The combination of synonyms and wildcards in the schemaPattern and procedureNamePattern is supported in a limited way due to complexity and performace issues.
    
    If the schemaPattern does not contain wildcards and the catalog argument is not null and not empty, the values are taken as either a schema + package name or a schema + synonym for a package. If it is a synonym, it will be resolved perhaps through multiple levels of synonyms and the search for the procedureNamePattern and columnNamePatten will be conducted in the resulting package.
    
    If the catalog is null and both the schemaNamePattern and procedureNamePattern do not contain wildcards, the values are taken as either a schema + procedureName or a schema + synonym. If it is a synonym it will be resolved perhaps through multiple levels of synonyms and the search for the columnNamePatten will be conducted in the resulting procedure
    Specified by:
    
    getProcedureColumns in interface DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schemaPattern - a schema name pattern; "" retrieves those without a schema
    
    procedureNamePattern - a procedure name pattern
    
    columnNamePattern - a column name pattern
    
    Returns:
    
    ResultSet each row is a stored procedure parameter or column description
    
    Throws:
    
    SQLException
    
    See Also:
    
    getSearchStringEscape()
  - getFunctionColumns
```
public ResultSet getFunctionColumns(String catalog,
                                    String schemaPattern,
                                    String functionNamePattern,
                                    String columnNamePattern)
                             throws SQLException
```
    Retrieves a description of the given catalog's system or user function parameters and return type.
    Only descriptions matching the schema, function and parameter name criteria are returned. They are ordered by FUNCTION_CAT, FUNCTION_SCHEM, FUNCTION_NAME and SPECIFIC_ NAME. Within this, the return value, if any, is first. Next are the parameter descriptions in call order. The column descriptions follow in column number order.
    
    Each row in the ResultSet is a parameter description, column description or return type description with the following fields:
    1. FUNCTION_CAT String => function catalog (may be null)
    2. FUNCTION_SCHEM String => function schema (may be null)
    3. FUNCTION_NAME String => function name. This is the name used to invoke the function
    4. COLUMN_NAME String => column/parameter name
    5. COLUMN_TYPE Short => kind of column/parameter:
      
      functionColumnUnknown - nobody knows
      
      functionColumnIn - IN parameter
      
      functionColumnInOut - INOUT parameter
      
      functionColumnOut - OUT parameter
      
      functionColumnReturn - function return value
      
      functionColumnResult - Indicates that the parameter or column is a column in the ResultSet
    6. DATA_TYPE int => SQL type from java.sql.Types
    7. TYPE_NAME String => SQL type name, for a UDT type the type name is fully qualified
    8. PRECISION int => precision
    9. LENGTH int => length in bytes of data
    10. SCALE short => scale - null is returned for data types where SCALE is not applicable.
    11. RADIX short => radix
    12. NULLABLE short => can it contain NULL.
      
      functionNoNulls - does not allow NULL values
      
      functionNullable - allows NULL values
      
      functionNullableUnknown - nullability unknown
    13. REMARKS String => comment describing column/parameter
    14. CHAR_OCTET_LENGTH int => the maximum length of binary and character based parameters or columns. For any other datatype the returned value is a NULL
    15. ORDINAL_POSITION int => the ordinal position, starting from 1, for the input and output parameters. A value of 0 is returned if this row describes the function's return value. For result set columns, it is the ordinal position of the column in the result set starting from 1.
    16. IS_NULLABLE String => ISO rules are used to determine the nullability for a parameter or column.
      
      YES --- if the parameter or column can include NULLs
      
      NO --- if the parameter or column cannot include NULLs
      
      empty string --- if the nullability for the parameter or column is unknown
    17. SPECIFIC_NAME String => the name which uniquely identifies this function within its schema. This is a user specified, or DBMS generated, name that may be different then the FUNCTION_NAME for example with overload functions
    The PRECISION column represents the specified column size for the given parameter or column. For numeric data, this is the maximum precision. For character data, this is the length in characters. For datetime datatypes, this is the length in characters of the String representation (assuming the maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype, this is the length in bytes. Null is returned for data types where the column size is not applicable.
    
    Note: If the user defined function in the database has failed to compile, this method returns an empty resultset.
    Specified by:
    
    getFunctionColumns in interface DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog; null means that the catalog name should not be used to narrow the search
    
    schemaPattern - a schema name pattern; must match the schema name as it is stored in the database; "" retrieves those without a schema; null means that the schema name should not be used to narrow the search
    
    functionNamePattern - a procedure name pattern; must match the function name as it is stored in the database
    
    columnNamePattern - a parameter name pattern; must match the parameter or column name as it is stored in the database
    
    Returns:
    
    ResultSet - each row describes a user function parameter, column or return type
    
    Throws:
    
    SQLException - if a database access error occurs
    
    Since:
    
    1.6
    
    See Also:
    
    getSearchStringEscape()
  - getTables
```
public ResultSet getTables(String catalog,
                           String schemaPattern,
                           String tableNamePattern,
                           String[] types)
                    throws SQLException
```
    Get a description of tables available in a catalog.
    Only table descriptions matching the catalog, schema, table name and type criteria are returned. They are ordered by TABLE_TYPE, TABLE_SCHEM and TABLE_NAME.
    
    Each table description has the following columns:
    1. TABLE_CAT String => table catalog (may be null)
    2. TABLE_SCHEM String => table schema (may be null)
    3. TABLE_NAME String => table name
    4. TABLE_TYPE String => table type. Typical types are "TABLE", "VIEW", "SYSTEM TABLE", "GLOBAL TEMPORARY", "LOCAL TEMPORARY", "ALIAS", "SYNONYM".
    5. TABLE_REMARKS String => explanatory comment on the table
    Note: Some databases may not return information for all tables.
    Specified by:
    
    getTables in interface DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schemaPattern - a schema name pattern; "" retrieves those without a schema
    
    tableNamePattern - a table name pattern
    
    types - a list of table types to include; null returns all types
    
    Returns:
    
    ResultSet each row is a table description
    
    Throws:
    
    SQLException
    
    See Also:
    
    getSearchStringEscape()
  - getSchemas
```
public ResultSet getSchemas()
                     throws SQLException
```
    Get the schema names available in this database. The results are ordered by schema name.
    The schema columns are:
    1. TABLE_CATALOG String => catalog name always null
    Specified by:
    
    getSchemas in interface DatabaseMetaData
    
    Returns:
    
    ResultSet each row has a single String column that is a schema name
    
    Throws:
    
    SQLException
  - getCatalogs
```
public ResultSet getCatalogs()
                      throws SQLException
```
    Get the catalog names available in this database. The results are ordered by catalog name.
    The catalog column is:
    1. TABLE_CAT String => catalog name
    Specified by:
    
    getCatalogs in interface DatabaseMetaData
    
    Returns:
    
    ResultSet each row has a single String column that is a catalog name
    
    Throws:
    
    SQLException
  - getTableTypes
```
public ResultSet getTableTypes()
                        throws SQLException
```
    Get the table types available in this database. The results are ordered by table type.
    The table type is:
    1. TABLE_TYPE String => table type. Typical types are "TABLE", "VIEW", "SYSTEM TABLE", "GLOBAL TEMPORARY", "LOCAL TEMPORARY", "ALIAS", "SYNONYM".
    Specified by:
    
    getTableTypes in interface DatabaseMetaData
    
    Returns:
    
    ResultSet each row has a single String column that is a table type
    
    Throws:
    
    SQLException
  - getColumns
```
public ResultSet getColumns(String catalog,
                            String schemaPattern,
                            String tableNamePattern,
                            String columnNamePattern)
                     throws SQLException
```
    Get a description of table columns available in a catalog.
    Only column descriptions matching the catalog, schema, table and column name criteria are returned. They are ordered by TABLE_SCHEM, TABLE_NAME and ORDINAL_POSITION.
    
    Each column description has the following columns:
    1. TABLE_CAT String => table catalog (may be null)
    2. TABLE_SCHEM String => table schema (may be null)
    3. TABLE_NAME String => table name
    4. COLUMN_NAME String => column name
    5. DATA_TYPE short => SQL type from java.sql.Types
    6. TYPE_NAME String => Data source dependent type name
    7. COLUMN_SIZE int => column size. For char or date types this is the maximum number of characters, for numeric or decimal types this is precision.
    8. BUFFER_LENGTH is not used.
    9. DECIMAL_DIGITS int => the number of fractional digits
    10. NUM_PREC_RADIX int => Radix (typically either 10 or 2)
    11. NULLABLE int => is NULL allowed?
      
      columnNoNulls - might not allow NULL values
      
      columnNullable - definitely allows NULL values
      
      columnNullableUnknown - nullability unknown
    12. REMARKS String => comment describing column (may be null)
    13. COLUMN_DEF String => default value (may be null)
    14. SQL_DATA_TYPE int => unused
    15. SQL_DATETIME_SUB int => unused
    16. CHAR_OCTET_LENGTH int => for char types the maximum number of bytes in the column
    17. ORDINAL_POSITION int => index of column in table (starting at 1)
    18. IS_NULLABLE String => "NO" means column definitely does not allow NULL values; "YES" means the column might allow NULL values. An empty string means nobody knows.
    19. SCOPE_CATLOG String => catalog of table that is the scope of a reference attribute (null if DATA_TYPE isn't REF)
    20. SCOPE_SCHEMA String => schema of table that is the scope of a reference attribute (null if the DATA_TYPE isn't REF)
    21. SCOPE_TABLE String => table name that this the scope of a reference attribure (null if the DATA_TYPE isn't REF)
    22. SOURCE_DATA_TYPE short => source type of a distinct type or user-generated Ref type, SQL type from java.sql.Types (null if DATA_TYPE isn't DISTINCT or user-generated REF)
    23. IS_AUTOINCREMENT String => Indicates whether this column is auto incremented
      
      YES --- if the column is auto incremented
      
      NO --- if the column is not auto incremented
      
      empty string --- if it cannot be determined whether the column is auto incremented parameter is unknown
    Specified by:
    
    getColumns in interface DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schemaPattern - a schema name pattern; "" retrieves those without a schema
    
    tableNamePattern - a table name pattern
    
    columnNamePattern - a column name pattern
    
    Returns:
    
    ResultSet each row is a column description
    
    Throws:
    
    SQLException
    
    See Also:
    
    getSearchStringEscape()
  - getColumnPrivileges
```
public ResultSet getColumnPrivileges(String catalog,
                                     String schemaPattern,
                                     String tableNamePattern,
                                     String columnNamePattern)
                              throws SQLException
```
    Get a description of the access rights for a table's columns.
    Only privileges matching the column name criteria are returned. They are ordered by COLUMN_NAME and PRIVILEGE.
    
    Each privilige description has the following columns:
    1. TABLE_CAT String => table catalog (may be null)
    2. TABLE_SCHEM String => table schema (may be null)
    3. TABLE_NAME String => table name
    4. COLUMN_NAME String => column name
    5. GRANTOR => grantor of access (may be null)
    6. GRANTEE String => grantee of access
    7. PRIVILEGE String => name of access (SELECT, INSERT, UPDATE, REFRENCES, ...)
    8. IS_GRANTABLE String => "YES" if grantee is permitted to grant to others; "NO" if not; null if unknown
    Specified by:
    
    getColumnPrivileges in interface DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schemaPattern - a schema name; "" retrieves those without a schema
    
    tableNamePattern - a table name
    
    columnNamePattern - a column name pattern
    
    Returns:
    
    ResultSet each row is a column privilege description
    
    Throws:
    
    SQLException
    
    See Also:
    
    getSearchStringEscape()
  - getTablePrivileges
```
public ResultSet getTablePrivileges(String catalog,
                                    String schemaPattern,
                                    String tableNamePattern)
                             throws SQLException
```
    Get a description of the access rights for each table available in a catalog.
    Only privileges matching the schema and table name criteria are returned. They are ordered by TABLE_SCHEM, TABLE_NAME, and PRIVILEGE.
    
    Each privilige description has the following columns:
    1. TABLE_CAT String => table catalog (may be null)
    2. TABLE_SCHEM String => table schema (may be null)
    3. TABLE_NAME String => table name
    4. COLUMN_NAME String => column name
    5. GRANTOR => grantor of access (may be null)
    6. GRANTEE String => grantee of access
    7. PRIVILEGE String => name of access (SELECT, INSERT, UPDATE, REFRENCES, ...)
    8. IS_GRANTABLE String => "YES" if grantee is permitted to grant to others; "NO" if not; null if unknown
    Specified by:
    
    getTablePrivileges in interface DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schemaPattern - a schema name pattern; "" retrieves those without a schema
    
    tableNamePattern - a table name pattern
    
    Returns:
    
    ResultSet each row is a table privilege description
    
    Throws:
    
    SQLException
    
    See Also:
    
    getSearchStringEscape()
  - getBestRowIdentifier
```
public ResultSet getBestRowIdentifier(String catalog,
                                      String schema,
                                      String table,
                                      int scope,
                                      boolean nullable)
                               throws SQLException
```
    Get a description of a table's optimal set of columns that uniquely identifies a row. They are ordered by SCOPE.
    Each column description has the following columns:
    1. SCOPE short => actual scope of result
      
      bestRowTemporary - very temporary, while using row
      
      bestRowTransaction - valid for remainder of current transaction
      
      bestRowSession - valid for remainder of current session
    2. COLUMN_NAME String => column name
    3. DATA_TYPE short => SQL data type from java.sql.Types
    4. TYPE_NAME String => Data source dependent type name
    5. COLUMN_SIZE int => precision
    6. BUFFER_LENGTH int => not used
    7. DECIMAL_DIGITS short => scale
    8. PSEUDO_COLUMN short => is this a pseudo column like an Oracle ROWID
      
      bestRowUnknown - may or may not be pseudo column
      
      bestRowNotPseudo - is NOT a pseudo column
      
      bestRowPseudo - is a pseudo column
    Specified by:
    
    getBestRowIdentifier in interface DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schema - a schema name; "" retrieves those without a schema
    
    table - a table name
    
    scope - the scope of interest; use same values as SCOPE
    
    nullable - include columns that are nullable?
    
    Returns:
    
    ResultSet each row is a column description
    
    Throws:
    
    SQLException
  - getVersionColumns
```
public ResultSet getVersionColumns(String catalog,
                                   String schema,
                                   String table)
                            throws SQLException
```
    Get a description of a table's columns that are automatically updated when any value in a row is updated. They are unordered.
    Each column description has the following columns:
    1. SCOPE short => is not used
    2. COLUMN_NAME String => column name
    3. DATA_TYPE short => SQL data type from java.sql.Types
    4. TYPE_NAME String => Data source dependent type name
    5. COLUMN_SIZE int => precision
    6. BUFFER_LENGTH int => length of column value in bytes
    7. DECIMAL_DIGITS short => scale
    8. PSEUDO_COLUMN short => is this a pseudo column like an Oracle ROWID
      
      versionColumnUnknown - may or may not be pseudo column
      
      versionColumnNotPseudo - is NOT a pseudo column
      
      versionColumnPseudo - is a pseudo column
    Specified by:
    
    getVersionColumns in interface DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schema - a schema name; "" retrieves those without a schema
    
    table - a table name
    
    Returns:
    
    ResultSet each row is a column description
    
    Throws:
    
    SQLException
  - getPrimaryKeys
```
public ResultSet getPrimaryKeys(String catalog,
                                String schema,
                                String table)
                         throws SQLException
```
    Get a description of a table's primary key columns. They are ordered by COLUMN_NAME.
    Each column description has the following columns:
    1. TABLE_CAT String => table catalog (may be null)
    2. TABLE_SCHEM String => table schema (may be null)
    3. TABLE_NAME String => table name
    4. COLUMN_NAME String => column name
    5. KEY_SEQ short => sequence number within primary key
    6. PK_NAME String => primary key name (may be null)
    Specified by:
    
    getPrimaryKeys in interface DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schema - a schema name pattern; "" retrieves those without a schema
    
    table - a table name
    
    Returns:
    
    ResultSet each row is a primary key column description
    
    Throws:
    
    SQLException
  - getImportedKeys
```
public ResultSet getImportedKeys(String catalog,
                                 String schema,
                                 String table)
                          throws SQLException
```
    Get a description of the primary key columns that are referenced by a table's foreign key columns (the primary keys imported by a table). They are ordered by PKTABLE_CAT, PKTABLE_SCHEM, PKTABLE_NAME, and KEY_SEQ.
    Each primary key column description has the following columns:
    1. PKTABLE_CAT String => primary key table catalog being imported (may be null)
    2. PKTABLE_SCHEM String => primary key table schema being imported (may be null)
    3. PKTABLE_NAME String => primary key table name being imported
    4. PKCOLUMN_NAME String => primary key column name being imported
    5. FKTABLE_CAT String => foreign key table catalog (may be null)
    6. FKTABLE_SCHEM String => foreign key table schema (may be null)
    7. FKTABLE_NAME String => foreign key table name
    8. FKCOLUMN_NAME String => foreign key column name
    9. KEY_SEQ short => sequence number within foreign key
    10. UPDATE_RULE short => What happens to foreign key when primary is updated:
      
      importedKeyCascade - change imported key to agree with primary key update
      
      importedKeyRestrict - do not allow update of primary key if it has been imported
      
      importedKeySetNull - change imported key to NULL if its primary key has been updated
    11. DELETE_RULE short => What happens to the foreign key when primary is deleted.
      
      importedKeyCascade - delete rows that import a deleted key
      
      importedKeyRestrict - do not allow delete of primary key if it has been imported
      
      importedKeySetNull - change imported key to NULL if its primary key has been deleted
    12. FK_NAME String => foreign key name (may be null)
    13. PK_NAME String => primary key name (may be null)
    Specified by:
    
    getImportedKeys in interface DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schema - a schema name pattern; "" retrieves those without a schema
    
    table - a table name
    
    Returns:
    
    ResultSet each row is a primary key column description
    
    Throws:
    
    SQLException
    
    See Also:
    
    getExportedKeys(java.lang.String, java.lang.String, java.lang.String)
  - getExportedKeys
```
public ResultSet getExportedKeys(String catalog,
                                 String schema,
                                 String table)
                          throws SQLException
```
    Get a description of a foreign key columns that reference a table's primary key columns (the foreign keys exported by a table). They are ordered by FKTABLE_CAT, FKTABLE_SCHEM, FKTABLE_NAME, and KEY_SEQ.
    Each foreign key column description has the following columns:
    1. PKTABLE_CAT String => primary key table catalog (may be null)
    2. PKTABLE_SCHEM String => primary key table schema (may be null)
    3. PKTABLE_NAME String => primary key table name
    4. PKCOLUMN_NAME String => primary key column name
    5. FKTABLE_CAT String => foreign key table catalog (may be null) being exported (may be null)
    6. FKTABLE_SCHEM String => foreign key table schema (may be null) being exported (may be null)
    7. FKTABLE_NAME String => foreign key table name being exported
    8. FKCOLUMN_NAME String => foreign key column name being exported
    9. KEY_SEQ short => sequence number within foreign key
    10. UPDATE_RULE short => What happens to foreign key when primary is updated:
      
      importedKeyCascade - change imported key to agree with primary key update
      
      importedKeyRestrict - do not allow update of primary key if it has been imported
      
      importedKeySetNull - change imported key to NULL if its primary key has been updated
    11. DELETE_RULE short => What happens to the foreign key when primary is deleted.
      
      importedKeyCascade - delete rows that import a deleted key
      
      importedKeyRestrict - do not allow delete of primary key if it has been imported
      
      importedKeySetNull - change imported key to NULL if its primary key has been deleted
    12. FK_NAME String => foreign key identifier (may be null)
    13. PK_NAME String => primary key identifier (may be null)
    Specified by:
    
    getExportedKeys in interface DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schema - a schema name pattern; "" retrieves those without a schema
    
    table - a table name
    
    Returns:
    
    ResultSet each row is a foreign key column description
    
    Throws:
    
    SQLException
    
    See Also:
    
    getImportedKeys(java.lang.String, java.lang.String, java.lang.String)
  - getCrossReference
```
public ResultSet getCrossReference(String primaryCatalog,
                                   String primarySchema,
                                   String primaryTable,
                                   String foreignCatalog,
                                   String foreignSchema,
                                   String foreignTable)
                            throws SQLException
```
    Get a description of the foreign key columns in the foreign key table that reference the primary key columns of the primary key table (describe how one table imports another's key.) This should normally return a single foreign key/primary key pair (most tables only import a foreign key from a table once.) They are ordered by FKTABLE_CAT, FKTABLE_SCHEM, FKTABLE_NAME, and KEY_SEQ.
    Each foreign key column description has the following columns:
    1. PKTABLE_CAT String => primary key table catalog (may be null)
    2. PKTABLE_SCHEM String => primary key table schema (may be null)
    3. PKTABLE_NAME String => primary key table name
    4. PKCOLUMN_NAME String => primary key column name
    5. FKTABLE_CAT String => foreign key table catalog (may be null) being exported (may be null)
    6. FKTABLE_SCHEM String => foreign key table schema (may be null) being exported (may be null)
    7. FKTABLE_NAME String => foreign key table name being exported
    8. FKCOLUMN_NAME String => foreign key column name being exported
    9. KEY_SEQ short => sequence number within foreign key
    10. UPDATE_RULE short => What happens to foreign key when primary is updated:
      
      importedKeyCascade - change imported key to agree with primary key update
      
      importedKeyRestrict - do not allow update of primary key if it has been imported
      
      importedKeySetNull - change imported key to NULL if its primary key has been updated
    11. DELETE_RULE short => What happens to the foreign key when primary is deleted.
      
      importedKeyCascade - delete rows that import a deleted key
      
      importedKeyRestrict - do not allow delete of primary key if it has been imported
      
      importedKeySetNull - change imported key to NULL if its primary key has been deleted
    12. FK_NAME String => foreign key identifier (may be null)
    13. PK_NAME String => primary key identifier (may be null)
    Specified by:
    
    getCrossReference in interface DatabaseMetaData
    
    Parameters:
    
    primaryCatalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    primarySchema - a schema name pattern; "" retrieves those without a schema
    
    primaryTable - the table name that exports the key
    
    foreignCatalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    foreignSchema - a schema name pattern; "" retrieves those without a schema
    
    foreignTable - the table name that imports the key
    
    Returns:
    
    ResultSet each row is a foreign key column description
    
    Throws:
    
    SQLException
    
    See Also:
    
    getImportedKeys(java.lang.String, java.lang.String, java.lang.String)
  - getTypeInfo
```
public ResultSet getTypeInfo()
                      throws SQLException
```
    Get a description of all the standard SQL types supported by this database. They are ordered by DATA_TYPE and then by how closely the data type maps to the corresponding JDBC SQL type.
    Each type description has the following columns:
    1. TYPE_NAME String => Type name
    2. DATA_TYPE short => SQL data type from java.sql.Types
    3. PRECISION int => maximum precision
    4. LITERAL_PREFIX String => prefix used to quote a literal (may be null)
    5. LITERAL_SUFFIX String => suffix used to quote a literal (may be null)
    6. CREATE_PARAMS String => parameters used in creating the type (may be null)
    7. NULLABLE short => can you use NULL for this type?
      
      typeNoNulls - does not allow NULL values
      
      typeNullable - allows NULL values
      
      typeNullableUnknown - nullability unknown
    8. CASE_SENSITIVE boolean=> is it case sensitive?
    9. SEARCHABLE short => can you use "WHERE" based on this type:
      
      typePredNone - No support
      
      typePredChar - Only supported with WHERE .. LIKE
      
      typePredBasic - Supported except for WHERE .. LIKE
      
      typeSearchable - Supported for all WHERE ..
    10. UNSIGNED_ATTRIBUTE boolean => is it unsigned?
    11. FIXED_PREC_SCALE boolean => can it be a money value?
    12. AUTO_INCREMENT boolean => can it be used for an auto-increment value?
    13. LOCAL_TYPE_NAME String => localized version of type name (may be null)
    14. MINIMUM_SCALE short => minimum scale supported
    15. MAXIMUM_SCALE short => maximum scale supported
    16. SQL_DATA_TYPE int => unused
    17. SQL_DATETIME_SUB int => unused
    18. NUM_PREC_RADIX int => usually 2 or 10
    Specified by:
    
    getTypeInfo in interface DatabaseMetaData
    
    Returns:
    
    ResultSet each row is a SQL type description
    
    Throws:
    
    SQLException
  - getIndexInfo
```
public ResultSet getIndexInfo(String catalog,
                              String schema,
                              String table,
                              boolean unique,
                              boolean approximate)
                       throws SQLException
```
    Get a description of a table's indices and statistics. They are ordered by NON_UNIQUE, TYPE, INDEX_NAME, and ORDINAL_POSITION.
    Each index column description has the following columns:
    1. TABLE_CAT String => table catalog (may be null)
    2. TABLE_SCHEM String => table schema (may be null)
    3. TABLE_NAME String => table name
    4. NON_UNIQUE boolean => Can index values be non-unique? false when TYPE is tableIndexStatistic
    5. INDEX_QUALIFIER String => index catalog (may be null); null when TYPE is tableIndexStatistic
    6. INDEX_NAME String => index name; null when TYPE is tableIndexStatistic
    7. TYPE short => index type:
      
      tableIndexStatistic - this identifies table statistics that are returned in conjuction with a table's index descriptions
      
      tableIndexClustered - this is a clustered index
      
      tableIndexHashed - this is a hashed index
      
      tableIndexOther - this is some other style of index
    8. ORDINAL_POSITION short => column sequence number within index; zero when TYPE is tableIndexStatistic
    9. COLUMN_NAME String => column name; null when TYPE is tableIndexStatistic
    10. ASC_OR_DESC String => column sort sequence, "A" => ascending, "D" => descending, may be null if sort sequence is not supported; null when TYPE is tableIndexStatistic
    11. CARDINALITY int => When TYPE is tableIndexStatisic then this is the number of rows in the table; otherwise it is the number of unique values in the index.
    12. PAGES int => When TYPE is tableIndexStatisic then this is the number of pages used for the table, otherwise it is the number of pages used for the current index.
    13. FILTER_CONDITION String => Filter condition, if any. (may be null)
    Specified by:
    
    getIndexInfo in interface DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schema - a schema name pattern; "" retrieves those without a schema
    
    table - a table name
    
    unique - when true, return only indices for unique values; when false, return indices regardless of whether unique or not
    
    approximate - when true, result is allowed to reflect approximate or out of data values; when false, results are requested to be accurate
    Note: The schema and table names may be used internally to create a query to get further information from the database. They must conform to the Oracle schema object naming rules. Examples of valid names: last_name, horse,"MY-TEST", "EVEN THIS & THAT!"
    
    Returns:
    
    ResultSet each row is an index column description
    
    Throws:
    
    SQLException
  - supportsResultSetType
```
public boolean supportsResultSetType(int type)
                              throws SQLException
```
    Implements JDBC 2.0 DatabaseMetaData.supportsResultSetType. Does the database support the given result set type? This method always return true.
    
    Specified by:
    
    supportsResultSetType in interface DatabaseMetaData
    
    Parameters:
    
    type - defined in java.sql.ResultSet
    
    Returns:
    
    true always
    
    Throws:
    
    SQLException - if a database access error occurs
    
    See Also:
    
    Connection
  - supportsResultSetConcurrency
```
public boolean supportsResultSetConcurrency(int type,
                                            int concurrency)
                                     throws SQLException
```
    Implements JDBC 2.0 DatabaseMetaData.supportsResultSetConcurrency. Does the database support the concurrency type in combination with the given result set type? This method always return true.
    
    Specified by:
    
    supportsResultSetConcurrency in interface DatabaseMetaData
    
    Parameters:
    
    type - defined in java.sql.ResultSet
    
    concurrency - type defined in java.sql.ResultSet
    
    Returns:
    
    true always
    
    Throws:
    
    SQLException - if a database access error occurs
    
    See Also:
    
    Connection
  - ownUpdatesAreVisible
```
public boolean ownUpdatesAreVisible(int type)
                             throws SQLException
```
    Implements JDBC 2.0 DatabaseMetaData.ownUpdatesAreVisible. Indicates whether a result set's own updates are visible. Return true for scroll-insensitive and scroll-sensitive resultsets.
    
    Specified by:
    
    ownUpdatesAreVisible in interface DatabaseMetaData
    
    Parameters:
    
    type - result set type, i.e. ResultSet.TYPE_XXX
    
    Returns:
    
    true if updates are visible for the result set type false otherwise
    
    Throws:
    
    SQLException - if a database access error occurs
  - ownDeletesAreVisible
```
public boolean ownDeletesAreVisible(int type)
                             throws SQLException
```
    Implements JDBC 2.0 DatabaseMetaData.ownDeletesAreVisible. Indicates whether a result set's own deletes are visible. Return true for scroll-insensitive and scroll-sensitive resultsets.
    
    Specified by:
    
    ownDeletesAreVisible in interface DatabaseMetaData
    
    Parameters:
    
    type - result set type, i.e. ResultSet.TYPE_XXX
    
    Returns:
    
    true if deletes are visible for the result set type false otherwise
    
    Throws:
    
    SQLException - if a database access error occurs
  - ownInsertsAreVisible
```
public boolean ownInsertsAreVisible(int type)
                             throws SQLException
```
    Implements JDBC 2.0 DatabaseMetaData.ownInsertsAreVisible. Indicates whether a result set's own inserts are visible. This method always return false in Oracle JDBC driver.
    
    Specified by:
    
    ownInsertsAreVisible in interface DatabaseMetaData
    
    Parameters:
    
    type - result set type, i.e. ResultSet.TYPE_XXX
    
    Returns:
    
    true if inserts are visible for the result set type false otherwise
    
    Throws:
    
    SQLException - if a database access error occurs
  - othersUpdatesAreVisible
```
public boolean othersUpdatesAreVisible(int type)
                                throws SQLException
```
    Implements JDBC 2.0 DatabaseMetaData.. Indicates whether updates made by others are visible. return true for scroll-sensitive result sets; reutrn false otherwise.
    
    Specified by:
    
    othersUpdatesAreVisible in interface DatabaseMetaData
    
    Parameters:
    
    type - result set type, i.e. ResultSet.TYPE_XXX
    
    Returns:
    
    true if updates made by others are visible for the result set type; false otherwise
    
    Throws:
    
    SQLException - if a database access error occurs
  - othersDeletesAreVisible
```
public boolean othersDeletesAreVisible(int type)
                                throws SQLException
```
    Implements JDBC 2.0 DatabaseMetaData.. Indicates whether deletes made by others are visible. This method always return false since Oracle JDBC driver doesn't make others changes visible.
    
    Specified by:
    
    othersDeletesAreVisible in interface DatabaseMetaData
    
    Parameters:
    
    type - result set type, i.e. ResultSet.TYPE_XXX
    
    Returns:
    
    true if deletes made by others are visible for the result set type; false otherwise
    
    Throws:
    
    SQLException - if a database access error occurs
  - othersInsertsAreVisible
```
public boolean othersInsertsAreVisible(int type)
                                throws SQLException
```
    Implements JDBC 2.0 DatabaseMetaData.othersInsertsAreVisible. Indicates whether inserts made by others are visible. This method always return false since Oracle JDBC driver doesn't make others changes visible.
    
    Specified by:
    
    othersInsertsAreVisible in interface DatabaseMetaData
    
    Parameters:
    
    type - result set type, i.e. ResultSet.TYPE_XXX
    
    Returns:
    
    true if updates are visible for the result set type true if inserts made by others are visible for the result set type; false otherwise
    
    Throws:
    
    SQLException - if a database access error occurs
  - updatesAreDetected
```
public boolean updatesAreDetected(int type)
                           throws SQLException
```
    Implements JDBC 2.0 DatabaseMetaData.updatesAreDetected. Indicates whether or not a visible row update can be detected by calling the method ResultSet.rowUpdated. This method always return false since Oracle JDBC driver doesn't detect row changes.
    
    Specified by:
    
    updatesAreDetected in interface DatabaseMetaData
    
    Parameters:
    
    type - result set type, i.e. ResultSet.TYPE_XXX
    
    Returns:
    
    true if changes are detected by the result set type false otherwise
    
    Throws:
    
    SQLException - if a database access error occurs
  - deletesAreDetected
```
public boolean deletesAreDetected(int type)
                           throws SQLException
```
    Implements JDBC 2.0 DatabaseMetaData.deletesAreDetected. Indicates whether or not a visible row delete can be detected by calling ResultSet.rowDeleted(). This method always return false since Oracle JDBC driver doesn't detect row changes.
    
    Specified by:
    
    deletesAreDetected in interface DatabaseMetaData
    
    Parameters:
    
    type - result set type, i.e. ResultSet.TYPE_XXX
    
    Returns:
    
    true if changes are detected by the resultset type
    
    Throws:
    
    SQLException - if a database access error occurs
  - insertsAreDetected
```
public boolean insertsAreDetected(int type)
                           throws SQLException
```
    Implements JDBC 2.0 DatabaseMetaData.insertsAreDetected. Indicates whether or not a visible row insert can be detected by calling ResultSet.rowInserted(). This method always return false since Oracle JDBC driver doesn't detect row changes.
    
    Specified by:
    
    insertsAreDetected in interface DatabaseMetaData
    
    Parameters:
    
    type -
    
    type - result set type, i.e. ResultSet.TYPE_XXX
    
    Returns:
    
    false always
    
    Throws:
    
    SQLException - if a database access error occurs
  - supportsBatchUpdates
```
public boolean supportsBatchUpdates()
                             throws SQLException
```
    Implements JDBC 2.0 DatabaseMetaData::supportBatchUpdates. Indicates whether the driver supports batch updates.
    
    Specified by:
    
    supportsBatchUpdates in interface DatabaseMetaData
    
    Returns:
    
    true if the driver supports batch updates false otherwise
    
    Throws:
    
    SQLException
  - getUDTs
```
public ResultSet getUDTs(String catalog,
                         String schemaPattern,
                         String typeNamePattern,
                         int[] types)
                  throws SQLException
```
    Implements JDBC 2.0 DatabaseMetaData::getUDTs. Gets a description of the STRUCT types defined in a particular schema.
    Only types matching the schema, type name and type criteria are returned. They are ordered by DATA_TYPE, TYPE_SCHEM and TYPE_NAME. The type name parameter may be a fully-qualified name. In this case, the catalog and schemaPattern parameters are ignored.
    
    Each type description has the following columns:
    1. TYPE_CAT String => the type's catalog which is always null
    2. TYPE_SCHEM String => type's schema
    3. TYPE_NAME String => type name
    4. CLASS_NAME String => Java class name
    5. DATA_TYPE String => type value defined in java.sql.Types. Only STRUCT is supported.
    6. REMARKS String => explanatory comment on the type
    Specified by:
    
    getUDTs in interface DatabaseMetaData
    
    Parameters:
    
    catalog - is ignored since Oracle database doesn't support catalog for structured types
    
    schemaPattern - a schema name pattern; "" retrieves those without a schema
    
    typeNamePattern - a type name pattern; may be a fully-qualified name
    
    types - a list of user-named types to include (Oracle only STRUCT) supports; null returns all types
    
    Returns:
    
    ResultSet - each row is a type description
    
    Throws:
    
    SQLException - if a database access error occurs
  - getConnection
```
public Connection getConnection()
                         throws SQLException
```
    Implements JDBC 2.0 DatabaseMetaData.getConnection. Retrieves the connection that produced this metadata object.
    
    Specified by:
    
    getConnection in interface DatabaseMetaData
    
    Returns:
    
    the connection that produced this metadata object
    
    Throws:
    
    SQLException
  - supportsSavepoints
```
public boolean supportsSavepoints()
                           throws SQLException
```
    JDBC 3.0 Retrieves whether this database supports savepoints.
    
    Specified by:
    
    supportsSavepoints in interface DatabaseMetaData
    
    Returns:
    
    true if savepoints are supported false otherwise
    
    Throws:
    
    SQLException - if a database access error occurs
    
    Since:
    
    9.0.2
  - supportsNamedParameters
```
public boolean supportsNamedParameters()
                                throws SQLException
```
    JDBC 3.0 Retrieves whether this database supports named parameters to callable statements.
    
    Specified by:
    
    supportsNamedParameters in interface DatabaseMetaData
    
    Returns:
    
    true if named parameters are supported false otherwise
    
    Throws:
    
    SQLException - if a database access error occurs
    
    Since:
    
    9.0.2
  - supportsMultipleOpenResults
```
public boolean supportsMultipleOpenResults()
                                    throws SQLException
```
    JDBC 3.0 Retrieves whether it is possible to have multiple ResultSet objects returned from a CallableStatement object simultaneously.
    
    Specified by:
    
    supportsMultipleOpenResults in interface DatabaseMetaData
    
    Returns:
    
    true if a CallableStatement object can return multiple ResultSet objects simultaneously; false otherwise
    
    Throws:
    
    SQLException - if a datanase access error occurs
    
    Since:
    
    9.0.2
  - supportsGetGeneratedKeys
```
public boolean supportsGetGeneratedKeys()
                                 throws SQLException
```
    JDBC 3.0 Retrieves whether auto-generated keys can be retrieved after a statement has been executed.
    
    Specified by:
    
    supportsGetGeneratedKeys in interface DatabaseMetaData
    
    Returns:
    
    true if auto-generated keys can be retrieved after a statement has executed; false otherwise
    
    Throws:
    
    SQLException - if a database access error occurs
    
    Since:
    
    9.0.2
  - getSuperTypes
```
public ResultSet getSuperTypes(String catalog,
                               String schemaPattern,
                               String typeNamePattern)
                        throws SQLException
```
    JDBC 3.0 Retrieves a description of the user-defined type (UDT) hierarchies defined in a particular schema in this database. Only the immediate super type/sub type relationship is modeled.
    Only supertype information for UDTs matching the catalog, schema, and type name is returned. The type name parameter may be a fully-qualified name. When the UDT name supplied is a fully-qualified name, the catalog and schemaPattern parameters are ignored.
    
    If a UDT does not have a direct super type, it is not listed here. A row of the ResultSet object returned by this method describes the designated UDT and a direct supertype. A row has the following columns:
    1. TYPE_CAT String => the UDT's catalog (may be null)
    2. TYPE_SCHEM String => UDT's schema (may be null)
    3. TYPE_NAME String => type name of the UDT
    4. SUPERTYPE_CAT String => the direct super type's catalog (may be null)
    5. SUPERTYPE_SCHEM String => the direct super type's schema (may be null)
    6. SUPERTYPE_NAME String => the direct super type's name
    Note: If the driver does not support type hierarchies, an empty result set is returned.
    Specified by:
    
    getSuperTypes in interface DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schemaPattern - a schema name pattern; "" retrieves those without a schema
    
    typeNamePattern - a UDT name pattern; may be a fully-qualified name
    
    Returns:
    
    a ResultSet object in which a row gives information about the designated UDT
    
    Throws:
    
    SQLException - if a database access error occurs
    
    Since:
    
    9.0.2
  - getSuperTables
```
public ResultSet getSuperTables(String catalog,
                                String schemaPattern,
                                String tableNamePattern)
                         throws SQLException
```
    JDBC 3.0 Retrieves a description of the table hierarchies defined in a particular schema in this database.
    Only supertable information for tables matching the catalog, schema and table name are returned. The table name parameter may be a fully- qualified name, in which case, the catalog and schemaPattern parameters are ignored. If a table does not have a super table, it is not listed here. Supertables have to be defined in the same catalog and schema as the sub tables. Therefore, the type description does not need to include this information for the supertable.
    
    Each type description has the following columns:
    1. TABLE_CAT String => the type's catalog (may be null)
    2. TABLE_SCHEM String => type's schema (may be null)
    3. TABLE_NAME String => type name
    4. SUPERTABLE_NAME String => the direct super type's name
    Note: If the driver does not support type hierarchies, an empty result set is returned.
    Specified by:
    
    getSuperTables in interface DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; "" retrieves those without a catalog; null means drop catalog name from the selection criteria
    
    schemaPattern - a schema name pattern; "" retrieves those without a schema
    
    tableNamePattern - a table name pattern; may be a fully-qualified name
    
    Returns:
    
    a ResultSet object in which each row is a type description
    
    Throws:
    
    SQLException - if a database access error occurs
    
    Since:
    
    9.0.2
  - getAttributes
```
public ResultSet getAttributes(String catalog,
                               String schemaPattern,
                               String typeNamePattern,
                               String attributeNamePattern)
                        throws SQLException
```
    JDBC 3.0 Retrieves a description of the given attribute of the given type for a user-defined type (UDT) that is available in the given schema and catalog.
    Descriptions are returned only for attributes of UDTs matching the catalog, schema, type, and attribute name criteria. They are ordered by TYPE_SCHEM, TYPE_NAME and ORDINAL_POSITION. This description does not contain inherited attributes.
    
    The ResultSet object that is returned has the following columns:
    1. TYPE_CAT String => type catalog (may be null)
    2. TYPE_SCHEM String => type schema (may be null)
    3. TYPE_NAME String => type name
    4. ATTR_NAME String => attribute name
    5. DATA_TYPE short => attribute type SQL type from java.sql.Types
    6. ATTR_TYPE_NAME String => Data source dependent type name. For a UDT, the type name is fully qualified. For a REF, the type name is fully qualified and represents the target type of the reference type.
    7. ATTR_SIZE int => column size. For char or date types this is the maximum number of characters; for numeric or decimal types this is precision.
    8. DECIMAL_DIGITS int => the number of fractional digits
    9. NUM_PREC_RADIX int => Radix (typically either 10 or 2)
    10. NULLABLE int => whether NULL is allowed
      
      attributeNoNulls - might not allow NULL values
      
      attributeNullable - definitely allows NULL values
      
      attributeNullableUnknown - nullability unknown
    11. REMARKS String => comment describing column (may be null)
    12. ATTR_DEF String => default value (may be null)
    13. SQL_DATA_TYPE int => unused
    14. SQL_DATETIME_SUB int => unused
    15. CHAR_OCTET_LENGTH int => for char types the maximum number of bytes in the column
    16. ORDINAL_POSITION int => index of column in table (starting at 1)
    17. IS_NULLABLE String => "NO" means column definitely does not allow NULL values; "YES" means the column might allow NULL values. An empty string means unknown.
    18. SCOPE_CATALOG String => catalog of table that is the scope of a reference attribute (null if DATA_TYPE isn't REF)
    19. SCOPE_SCHEMA String => schema of table that is the scope of a reference attribute (null if DATA_TYPE isn't REF)
    20. SCOPE_TABLE String => table name that is the scope of a reference attribute (null if the DATA_TYPE isn't REF)
    21. SOURCE_DATA_TYPE short => source type of a distinct type or user-generated Ref type,SQL type from java.sql.Types (null if DATA_TYPE isn't DISTINCT or user-generated REF)
    Specified by:
    
    getAttributes in interface DatabaseMetaData
    
    Parameters:
    
    catalog - a catalog name; must match the catalog name as it is stored in the database; "" retrieves those without a catalog; null means that the catalog name should not be used to narrow the search
    
    schemaPattern - a schema name pattern; must match the schema name as it is stored in the database; "" retrieves those without a schema; null means that the schema name should not be used to narrow the search
    
    typeNamePattern - a type name pattern; must match the type name as it is stored in the database
    
    attributeNamePattern - an attribute name pattern; must match the attribute name as it is declared in the database
    
    Returns:
    
    a ResultSet object in which each row is an attribute description
    
    Throws:
    
    SQLException - if a database access error occurs
    
    Since:
    
    9.0.2
  - supportsResultSetHoldability
```
public boolean supportsResultSetHoldability(int holdability)
                                     throws SQLException
```
    JDBC 3.0 Retrieves whether this database supports the given result set holdability.
    
    Specified by:
    
    supportsResultSetHoldability in interface DatabaseMetaData
    
    Parameters:
    
    holdability - one of the following constants: ResultSet.HOLD_CURSORS_OVER_COMMIT or ResultSet.CLOSE_CURSORS_AT_COMMIT or OracleResultSet.HOLD_CURSORS_OVER_COMMIT for jdk1.2 and jdk1.3 or OracleResultSet.CLOSE_CURSORS_AT_COMMIT for jdk1.2 and jdk1.3
    
    Returns:
    
    true if so false otherwise
    
    Throws:
    
    SQLException - if a database access error occurs
    
    Since:
    
    9.0.2
    
    See Also:
    
    Connection
  - getResultSetHoldability
```
public int getResultSetHoldability()
                            throws SQLException
```
    JDBC 3.0 Retrieves the default holdability of this ResultSet object.
    
    Specified by:
    
    getResultSetHoldability in interface DatabaseMetaData
    
    Returns:
    
    the default holdability either ResultSet.HOLD_CURSORS_OVER_COMMIT or ResultSet.CLOSE_CURSORS_AT_COMMIT or OracleResultSet.HOLD_CURSORS_OVER_COMMIT for jdk1.2 and jdk1.3 or OracleResultSet.CLOSE_CURSORS_AT_COMMIT for jdk1.2 and jdk1.3
    
    Throws:
    
    SQLException - if a database access error occurs
    
    Since:
    
    9.0.2
  - getDatabaseMajorVersion
```
public int getDatabaseMajorVersion()
                            throws SQLException
```
    JDBC 3.0 Retrieves the major version number of the underlying database.
    
    Specified by:
    
    getDatabaseMajorVersion in interface DatabaseMetaData
    
    Returns:
    
    the underlying database's major version
    
    Throws:
    
    SQLException - if a database access error occurs
    
    Since:
    
    9.0.2
  - getDatabaseMinorVersion
```
public int getDatabaseMinorVersion()
                            throws SQLException
```
    JDBC 3.0 Retrieves the minor version number of the underlying database.
    
    Specified by:
    
    getDatabaseMinorVersion in interface DatabaseMetaData
    
    Returns:
    
    underlying database's minor version
    
    Throws:
    
    SQLException - if a database access error occurs
    
    Since:
    
    9.0.2
  - getJDBCMajorVersion
```
public int getJDBCMajorVersion()
                        throws SQLException
```
    JDBC 3.0 Retrieves the major JDBC version number for this driver.
    
    Specified by:
    
    getJDBCMajorVersion in interface DatabaseMetaData
    
    Returns:
    
    JDBC version major number
    
    Throws:
    
    SQLException - if a database access error occurs
    
    Since:
    
    9.0.2
  - getJDBCMinorVersion
```
public int getJDBCMinorVersion()
                        throws SQLException
```
    JDBC 3.0 Retrieves the minor JDBC version number for this driver.
    
    Specified by:
    
    getJDBCMinorVersion in interface DatabaseMetaData
    
    Returns:
    
    JDBC version minor number
    
    Throws:
    
    SQLException - if a database access error occurs
    
    Since:
    
    9.0.2
  - getSQLStateType
```
public int getSQLStateType()
                    throws SQLException
```
    JDBC 3.0 Indicates whether the SQLSTATEs returned by SQLException.getSQLState is X/Open (now known as Open Group) SQL CLI or SQL99.
    
    Specified by:
    
    getSQLStateType in interface DatabaseMetaData
    
    Returns:
    
    the type of SQLSTATEs, one of: sqlStateXOpen or sqlStateSQL99
    
    Throws:
    
    SQLException - if a database access error occurs
    
    Since:
    
    9.0.2
  - locatorsUpdateCopy
```
public boolean locatorsUpdateCopy()
                           throws SQLException
```
    JDBC 3.0
    
    Specified by:
    
    locatorsUpdateCopy in interface DatabaseMetaData
    
    Returns:
    
    Throws:
    
    SQLException
  - supportsStatementPooling
```
public boolean supportsStatementPooling()
                                 throws SQLException
```
    JDBC 3.0
    
    Specified by:
    
    supportsStatementPooling in interface DatabaseMetaData
    
    Returns:
    
    Throws:
    
    SQLException
  - getDriverNameInfo
```
public static String getDriverNameInfo()
                                throws SQLException
```
    What's the name of this JDBC driver?
    
    Returns:
    
    JDBC driver name
    
    Throws:
    
    SQLException
  - getDriverVersionInfo
```
public static String getDriverVersionInfo()
                                   throws SQLException
```
    Deprecated.
    -- use standard getDriverVersion()
    
    What's the version of this JDBC driver?
    
    Returns:
    
    JDBC driver version
    
    Throws:
    
    SQLException
  - getDriverMajorVersionInfo
```
public static int getDriverMajorVersionInfo()
```
    Deprecated.
    -- use standard getDriverMajorVersion()
    
    What's this JDBC driver's major version number?
    
    Returns:
    
    JDBC driver major version
  - getDriverMinorVersionInfo
```
public static int getDriverMinorVersionInfo()
```
    Deprecated.
    -- use JDBC standard method getDriverMinorVersion
    
    What's this JDBC driver's minor version number?
    
    Returns:
    
    JDBC driver minor version number
  - getLobPrecision
```
public static String getLobPrecision()
                              throws SQLException
```
    Deprecated.
    
    This is an internal method that should not be used by customers.
    
    Throws:
    
    SQLException
  - getLobMaxLength
```
public long getLobMaxLength()
                     throws SQLException
```
    The max size of a lob on the server for this connection. Note that the actual size available for a particular lob will depend on the specific storage allocation.
    
    Specified by:
    
    getLobMaxLength in interface AdditionalDatabaseMetaData
    
    Returns:
    
    Max size of lob.
    
    Throws:
    
    SQLException
  - getRowIdLifetime
```
public RowIdLifetime getRowIdLifetime()
                               throws SQLException
```
    Oracle rowids are valid across all sessions.
    
    Specified by:
    
    getRowIdLifetime in interface DatabaseMetaData
    
    Returns:
    
    true
    
    Throws:
    
    SQLException
    
    Since:
    
    11.0
  - getSchemas
```
public ResultSet getSchemas(String catalog,
                            String schemaPattern)
                     throws SQLException
```
    Return the schemas that match the given pattern. Oracle does not support catalogs so that parameter is ignored. If the pattern is null that means don't filter using a pattern. Since the catalog is ignored that is the same as the getSchemas() method so call it.
    The schema columns are:
    1. TABLE_SCHEM String => schema name
    2. TABLE_CATALOG String => catalog name always null.
    Specified by:
    
    getSchemas in interface DatabaseMetaData
    
    Parameters:
    
    catalog - ignored
    
    schemaPattern - pattern to match against the schema names
    
    Returns:
    
    a result set of schema names
    
    Throws:
    
    SQLException - if a database error occurs
    
    Since:
    
    11.0
  - supportsStoredFunctionsUsingCallSyntax
```
public boolean supportsStoredFunctionsUsingCallSyntax()
                                               throws SQLException
```
    Oracle supports using the JDBC escape syntax to call PLSQL functions.
    
    Specified by:
    
    supportsStoredFunctionsUsingCallSyntax in interface DatabaseMetaData
    
    Returns:
    
    true
    
    Throws:
    
    SQLException
    
    Since:
    
    11.0
  - autoCommitFailureClosesAllResultSets
```
public boolean autoCommitFailureClosesAllResultSets()
                                             throws SQLException
```
    Oracle does not close ResultSets when autocommit fails.
    
    Specified by:
    
    autoCommitFailureClosesAllResultSets in interface DatabaseMetaData
    
    Returns:
    
    false
    
    Throws:
    
    SQLException
    
    Since:
    
    11.0
  - getClientInfoProperties
```
public ResultSet getClientInfoProperties()
                                  throws SQLException
```
    Specified by:
    
    getClientInfoProperties in interface DatabaseMetaData
    
    Throws:
    
    SQLException
  - getFunctions
```
public ResultSet getFunctions(String catalog,
                              String schemaPattern,
                              String functionNamePattern)
                       throws SQLException
```
    Return a result set that describes the matching functions.
    
    Specified by:
    
    getFunctions in interface DatabaseMetaData
    
    Parameters:
    
    catalog - used for the package name
    
    schemaPattern - the schema pattern to match
    
    functionNamePattern - the pattern to match against the function name
    
    Returns:
    
    a ResultSet that describes the matching functions
    
    Throws:
    
    SQLException
    
    Since:
    
    11.0
  - isWrapperFor
```
public boolean isWrapperFor(Class<?> iface)
                     throws SQLException
```
    Since this class is not a wrapper, just check to see if this implements the requested interface.
    
    Specified by:
    
    isWrapperFor in interface Wrapper
    
    Parameters:
    
    iface - requested interface
    
    Returns:
    
    true iff this implements the requested interface
    
    Throws:
    
    SQLException - if the arg is not an interface
    
    Since:
    
    JDBC 4.0
  - unwrap
```
public <T> T unwrap(Class<T> iface)
             throws SQLException
```
    Since this class is not a wrapper, just check to see if this implements the requested interface. If it does return this.
    
    Specified by:
    
    unwrap in interface Wrapper
    
    Parameters:
    
    iface - requested interface
    
    Returns:
    
    this iff this implements the requested interface
    
    Throws:
    
    SQLException - if this does not implement the arg or the arg is not an interface
    
    Since:
    
    JDBC 4.0
  - hasSqlWildcard
```
protected boolean hasSqlWildcard(String s)
```
  - stripSqlEscapes
```
protected String stripSqlEscapes(String s)
```
  - getOracleTypeMetaData
```
public OracleTypeMetaData getOracleTypeMetaData(String sqlTypeName)
                                         throws SQLException
```
    Description copied from interface: AdditionalDatabaseMetaData
    
    Return the type metadata for a named type. Use this instead of the various Descriptor classes and methods. Use of the Descriptor classes and methods such as oracle.sql.TypeDescriptor, is not recommended and will cause ClassCastException if used with some new Oracle JDBC features.
    
    Specified by:
    
    getOracleTypeMetaData in interface AdditionalDatabaseMetaData
    
    Parameters:
    
    sqlTypeName - the name of the type
    
    Returns:
    
    the metadata for the type
    
    Throws:
    
    SQLException - if the type does not exist or some other error occurs
  - datatypeQuery
```
protected String datatypeQuery(OracleDatabaseMetaData.DataTypeSource src)
```
  - datatypeQuery
```
protected String datatypeQuery(OracleDatabaseMetaData.DataTypeSource src,
                               String table)
```
  - getPseudoColumns
```
public ResultSet getPseudoColumns(String catalog,
                                  String schemaPattern,
                                  String tableNamePattern,
                                  String columnNamePattern)
                           throws SQLException
```
    Specified by:
    
    getPseudoColumns in interface DatabaseMetaData
    
    Throws:
    
    SQLException
  - generatedKeyAlwaysReturned
```
public boolean generatedKeyAlwaysReturned()
                                   throws SQLException
```
    Specified by:
    
    generatedKeyAlwaysReturned in interface DatabaseMetaData
    
    Throws:
    
    SQLException
  - getAuditBanner
```
public String getAuditBanner()
                      throws SQLException
```
    Returns the audit banner on this connection.
    
    Specified by:
    
    getAuditBanner in interface AdditionalDatabaseMetaData
    
    Returns:
    
    String containing the audit banner or a null String if there isn't one available on this connection.
    
    Throws:
    
    SQLException - if there is any issue while retrieving the banner
  - getAccessBanner
```
public String getAccessBanner()
                       throws SQLException
```
    Returns the access banner on this connection.
    
    Specified by:
    
    getAccessBanner in interface AdditionalDatabaseMetaData
    
    Returns:
    
    String containing the access banner or a null String if there isn't one available on this connection.
    
    Throws:
    
    SQLException - if there is any issue while retrieving the banner
  - isServerBigSCN
```
public boolean isServerBigSCN()
                       throws SQLException
```
    Specified by:
    
    isServerBigSCN in interface oracle.jdbc.internal.AdditionalDatabaseMetaData
    
    Throws:
    
    SQLException
  - isCompatible122OrGreater
```
public boolean isCompatible122OrGreater()
                                 throws SQLException
```
    Throws:
    
    SQLException
  - setACProxy
```
public void setACProxy(Object w)
```
    Specified by:
    
    setACProxy in interface oracle.jdbc.internal.ACProxyable
  - getACProxy
```
public Object getACProxy()
```
    Specified by:
    
    getACProxy in interface oracle.jdbc.internal.ACProxyable

Class OracleDatabaseMetaData

Nested Class Summary

Field Summary

Fields inherited from interface java.sql.DatabaseMetaData

Constructor Summary

Method Summary

Methods inherited from interface java.sql.DatabaseMetaData

Methods inherited from class java.lang.Object

Field Detail

connection

sqlWildcardRegex

sqlWildcardPattern

sqlEscapeRegex

sqlEscapePattern

acProxy

Constructor Detail

OracleDatabaseMetaData

Method Detail

allProceduresAreCallable

allTablesAreSelectable

getURL

getUserName

isReadOnly

nullsAreSortedHigh

nullsAreSortedLow

nullsAreSortedAtStart

nullsAreSortedAtEnd

getDatabaseProductName

getDatabaseProductVersion

getDriverName

getDriverVersion

getDriverMajorVersion

getDriverMinorVersion

usesLocalFiles

usesLocalFilePerTable

supportsMixedCaseIdentifiers

storesUpperCaseIdentifiers

storesLowerCaseIdentifiers

storesMixedCaseIdentifiers

supportsMixedCaseQuotedIdentifiers

storesUpperCaseQuotedIdentifiers

storesLowerCaseQuotedIdentifiers

storesMixedCaseQuotedIdentifiers

getIdentifierQuoteString

getSQLKeywords

getNumericFunctions

getStringFunctions

getSystemFunctions

getTimeDateFunctions

getSearchStringEscape

getExtraNameCharacters

supportsAlterTableWithAddColumn

supportsAlterTableWithDropColumn

supportsColumnAliasing

nullPlusNonNullIsNull

supportsConvert

supportsConvert

supportsTableCorrelationNames

supportsDifferentTableCorrelationNames

supportsExpressionsInOrderBy

supportsOrderByUnrelated

supportsGroupBy

supportsGroupByUnrelated

supportsGroupByBeyondSelect

supportsLikeEscapeClause

supportsMultipleResultSets

supportsMultipleTransactions

supportsNonNullableColumns

supportsMinimumSQLGrammar

supportsCoreSQLGrammar

supportsExtendedSQLGrammar

supportsANSI92EntryLevelSQL

supportsANSI92IntermediateSQL

supportsANSI92FullSQL

supportsIntegrityEnhancementFacility

supportsOuterJoins

supportsFullOuterJoins

supportsLimitedOuterJoins

getSchemaTerm

getProcedureTerm