Package oracle.jdbc

Interface OracleResultSetMetaData

All Superinterfaces:

ResultSetMetaData, Wrapper

All Known Subinterfaces:

StructMetaData

public interface OracleResultSetMetaData
extends ResultSetMetaData

An object that can be used to get information about the types and properties of the columns in a ResultSet object.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static class	OracleResultSetMetaData.SecurityAttribute	eXtensible Data Security (XDS) attribute.

Field Summary

Fields inherited from interface java.sql.ResultSetMetaData

columnNoNulls, columnNullable, columnNullableUnknown

Method Summary

Modifier and Type	Method	Description
OracleResultSetMetaData.SecurityAttribute	getSecurityAttribute(int indexOfColumnInResultSet)	Returns the eXtensible Data Security (XDS) attribute of this column.
boolean	isColumnInvisible(int indexOfColumnInResultSet)	Returns the column visibility information of the specified column.
boolean	isColumnJSON(int column)	Returns true if the specified column contains JSON data otherwise returns false.
boolean	isNCHAR(int index)	isNCHAR (int)
boolean	isVariableScale(int column)	If the scale of Oracle NUMBER, FLOAT, DECIMAL and DOUBLE database datatype is unspecified this method returns true.

Methods inherited from interface java.sql.ResultSetMetaData

getCatalogName, getColumnClassName, getColumnCount, getColumnDisplaySize, getColumnLabel, getColumnName, getColumnType, getColumnTypeName, getPrecision, getScale, getSchemaName, getTableName, isAutoIncrement, isCaseSensitive, isCurrency, isDefinitelyWritable, isNullable, isReadOnly, isSearchable, isSigned, isWritable

Methods inherited from interface java.sql.Wrapper

isWrapperFor, unwrap

Method Detail

isNCHAR

boolean isNCHAR(int index)
         throws SQLException

isNCHAR (int)

Parameters:

index - the column index

Returns:

true if the column is of type NCHAR/NVARCHAR/NCLOB false if the column is not of type NCHAR/NVARCHAR/NCLOB

Throws:

SQLException

getSecurityAttribute

OracleResultSetMetaData.SecurityAttribute getSecurityAttribute(int indexOfColumnInResultSet)
                                                        throws SQLException

Returns the eXtensible Data Security (XDS) attribute of this column.

Throws:

SQLException

See Also:

OracleResultSet.getAuthorizationIndicator

isColumnInvisible

boolean isColumnInvisible(int indexOfColumnInResultSet)
                   throws SQLException

Returns the column visibility information of the specified column.

An invisible column is a user defined/specified hidden column which can be later changed to visible. It is created as:

     create table test_tab (col1 integer invisibile, col2 integer);
    

It can be modified later by using:

     alter table test_tab modify (col1 visible);
    

Parameters:

indexOfColumnInResultSet - the column index

Returns:

true if the column is invisible false if the column is not invisible

Throws:

SQLException

isVariableScale

boolean isVariableScale(int column)
                 throws SQLException

If the scale of Oracle NUMBER, FLOAT, DECIMAL and DOUBLE database datatype is unspecified this method returns true. Oracle database returns -127 if scale is unspecified.

Parameters:

column - the first column is 1, the second is 2, ...

Returns:

true if the column type has variable scale

Throws:

SQLException

isColumnJSON

boolean isColumnJSON(int column)
              throws SQLException

Returns true if the specified column contains JSON data otherwise returns false.

A columns that always contains JSON data is a textual (VARCHAR2 or CLOB) or binary (BLOB) table column with an IS JSON check constraint or a view column that has an underlyign JSON generation function .

Parameters:

column - the column index

Returns:

true if the column contains JSON data false if the column does not contan JSON data

Throws:

SQLException