SQL_TEXT

VARCHAR2(1000)

First thousand characters of the SQL text for the current cursor

SQL_FULLTEXT

CLOB

Full text for the SQL statement exposed as a CLOB column. The full text of a SQL statement can be retrieved using this column instead of joining with the V$SQLTEXT dynamic performance view.

SQL_ID

VARCHAR2(13)

SQL identifier of the parent cursor in the library cache

SHARABLE_MEM

NUMBER

Amount of shared memory used by the child cursor (in bytes)

PERSISTENT_MEM

NUMBER

Fixed amount of memory used for the lifetime of the child cursor (in bytes)

RUNTIME_MEM

NUMBER

Fixed amount of memory required during the execution of the child cursor

SORTS

NUMBER

Number of sorts that were done for the child cursor

LOADED_VERSIONS

NUMBER

Indicates whether the context heap is loaded (1) or not (0)

OPEN_VERSIONS

NUMBER

Indicates whether the child cursor is locked (1) or not (0)

USERS_OPENING

NUMBER

Number of users that have any of the child cursors open

FETCHES

NUMBER

Number of fetches associated with the SQL statement

EXECUTIONS

NUMBER

Number of executions that took place on this object since it was brought into the library cache

PX_SERVERS_EXECUTIONS

NUMBER

Total number of executions performed by parallel execution servers (0 when the statement has never been executed in parallel)

END_OF_FETCH_COUNT

NUMBER

Number of times this cursor was fully executed since the cursor was brought into the library cache. The value of this statistic is not incremented when the cursor is partially executed, either because it failed during the execution or because only the first few rows produced by this cursor are fetched before the cursor is closed or re-executed. By definition, the value of the END_OF_FETCH_COUNT column should be less or equal to the value of the EXECUTIONS column.

USERS_EXECUTING

NUMBER

Number of users executing the statement

LOADS

NUMBER

Number of times the object was either loaded or reloaded

FIRST_LOAD_TIME

VARCHAR2(76)

Timestamp of the parent creation time

INVALIDATIONS

NUMBER

Number of times this child cursor has been invalidated

PARSE_CALLS

NUMBER

Number of parse calls for this child cursor

DISK_READS

NUMBER

Number of disk reads for this child cursor

DIRECT_WRITES

NUMBER

Number of direct writes for this child cursor

DIRECT_READS

NUMBER

Number of direct reads for this child cursor

BUFFER_GETS

NUMBER

Number of buffer gets for this child cursor

APPLICATION_WAIT_TIME

NUMBER

Application wait time (in microseconds)

CONCURRENCY_WAIT_TIME

NUMBER

Concurrency wait time (in microseconds)

CLUSTER_WAIT_TIME

NUMBER

Cluster wait time (in microseconds)

USER_IO_WAIT_TIME

NUMBER

User I/O Wait Time (in microseconds)

PLSQL_EXEC_TIME

NUMBER

PL/SQL execution time (in microseconds)

JAVA_EXEC_TIME

NUMBER

Java execution time (in microseconds)

ROWS_PROCESSED

NUMBER

Total number of rows the parsed SQL statement returns

COMMAND_TYPE

NUMBER

Oracle command type definition

OPTIMIZER_MODE

VARCHAR2(10)

Mode under which the SQL statement was executed

OPTIMIZER_COST

NUMBER

Cost of this query given by the optimizer

OPTIMIZER_ENV

RAW(2000)

Optimizer environment

OPTIMIZER_ENV_HASH_VALUE

NUMBER

Hash value for the optimizer environment

PARSING_USER_ID

NUMBER

User ID of the user who originally built this child cursor

PARSING_SCHEMA_ID

NUMBER

Schema ID that was used to originally build this child cursor

PARSING_SCHEMA_NAME

VARCHAR2(128)

Schema name that was used to originally build this child cursor

KEPT_VERSIONS

NUMBER

Indicates whether this child cursor has been marked to be kept pinned in the cache using the DBMS_SHARED_POOL package

ADDRESS

RAW(4 | 8)

Address of the handle to the parent for this cursor

TYPE_CHK_HEAP

RAW(4 | 8)

Descriptor of the type check heap for this child cursor

HASH_VALUE

NUMBER

Hash value of the parent statement in the library cache

OLD_HASH_VALUE

NUMBER

Old SQL hash value

PLAN_HASH_VALUE

NUMBER

Numeric representation of the current SQL plan for this cursor. Comparing one PLAN_HASH_VALUE to another easily identifies whether or not two plans are the same (rather than comparing the two plans line by line).

FULL_PLAN_HASH_VALUE

NUMBER

Numeric representation of the complete SQL plan for this cursor. Comparing one FULL_PLAN_HASH_VALUE to another easily identifies whether or not two plans are the same (rather than comparing the two plans line by line). Note that the FULL_PLAN_HASH_VALUE cannot be compared across databases releases. It is not backward compatible.

CHILD_NUMBER

NUMBER

Number of this child cursor

SERVICE

VARCHAR2(64)

Service name

SERVICE_HASH

NUMBER

Hash value for the name listed in the SERVICE column

MODULE

VARCHAR2(64)

Contains the name of the module that was executing when the SQL statement was first parsed, which is set by calling DBMS_APPLICATION_INFO.SET_MODULE

MODULE_HASH

NUMBER

Hash value of the module listed in the MODULE column

ACTION

VARCHAR2(64)

Contains the name of the action that was executing when the SQL statement was first parsed, which is set by calling DBMS_APPLICATION_INFO.SET_ACTION

ACTION_HASH

NUMBER

Hash value of the action listed in the ACTION column

SERIALIZABLE_ABORTS

NUMBER

Number of times the transaction failed to serialize, producing ORA-08177 errors, per cursor

OUTLINE_CATEGORY

VARCHAR2(64)

If an outline was applied during construction of the cursor, then this column displays the category of that outline. Otherwise the column is left blank.

CPU_TIME

NUMBER

CPU time (in microseconds) used by this cursor for parsing, executing, and fetching

ELAPSED_TIME

NUMBER

Elapsed time (in microseconds) used by this cursor for parsing, executing, and fetching. If the cursor uses parallel execution, then ELAPSED_TIME is the cumulative time for the query coordinator, plus all parallel query slave processes.

OUTLINE_SID

NUMBER

Outline session identifier

CHILD_ADDRESS

RAW(4 | 8)

Address of the child cursor

SQLTYPE

NUMBER

Denotes the version of the SQL language used for this statement

REMOTE

VARCHAR2(1)

Indicates whether the cursor is remote mapped (Y) or not (N)

OBJECT_STATUS

VARCHAR2(19)

Status of the cursor:

• VALID - Valid, authorized without errors

• VALID_AUTH_ERROR - Valid, authorized with authorization errors

• VALID_COMPILE_ERROR - Valid, authorized with compilation errors

• VALID_UNAUTH - Valid, unauthorized

• INVALID_UNAUTH - Invalid, unauthorized

• INVALID - Invalid, unauthorized but keep the timestamp

LITERAL_HASH_VALUE

NUMBER

Hash value of the literals which are replaced with system-generated bind variables and are to be matched, when CURSOR_SHARING is used. This is not the hash value for the SQL statement. If CURSOR_SHARING is not used, then the value is 0.

LAST_LOAD_TIME

VARCHAR2(76)

Time at which the query plan was loaded into the library cache

IS_OBSOLETE

VARCHAR2(1)

Indicates whether the cursor has become obsolete (Y) or not (N). This can happen if the number of child cursors is too large.

IS_BIND_SENSITIVE

VARCHAR2(1)

Indicates whether the cursor is bind sensitive (Y) or not (N). A query is considered bind-sensitive if the optimizer peeked at one of its bind variable values when computing predicate selectivities and where a change in a bind variable value may cause the optimizer to generate a different plan.

IS_BIND_AWARE

VARCHAR2(1)

Indicates whether the cursor is bind aware (Y) or not (N). A query is considered bind-aware if it has been marked to use extended cursor sharing. The query would already have been marked as bind-sensitive.

IS_SHAREABLE

VARCHAR2(1)

Indicates whether the cursor can be shared (Y) or not (N)

CHILD_LATCH

NUMBER

Child latch number that is protecting the cursor. This column is obsolete and maintained for backward compatibility.

SQL_PROFILE

VARCHAR2(64)

SQL profile used for this statement, if any

SQL_PATCH

VARCHAR2(128)

SQL patch used for this statement, if any

SQL_PLAN_BASELINE

VARCHAR2(128)

SQL plan baseline used for this statement, if any

PROGRAM_ID

NUMBER

Program identifier

PROGRAM_LINE#

NUMBER

Program line number

EXACT_MATCHING_SIGNATURE

NUMBER

Signature calculated on the normalized SQL text. The normalization includes the removal of white space and the uppercasing of all non-literal strings.

FORCE_MATCHING_SIGNATURE

NUMBER

Signature used when the CURSOR_SHARING parameter is set to FORCE

LAST_ACTIVE_TIME

DATE

Time at which the query plan was last active

BIND_DATA

RAW(2000)

Bind data

TYPECHECK_MEM

NUMBER

Typecheck memory

IO_CELL_OFFLOAD_ELIGIBLE_BYTES

NUMBER

Number of I/O bytes which can be filtered by the Exadata storage system

See Also: Oracle Exadata Storage Server Software documentation for more information

IO_INTERCONNECT_BYTES

NUMBER

Number of I/O bytes exchanged between Oracle Database and the storage system

PHYSICAL_READ_REQUESTS

NUMBER

Number of physical read I/O requests issued by the monitored SQL

PHYSICAL_READ_BYTES

NUMBER

Number of bytes read from disks by the monitored SQL

PHYSICAL_WRITE_REQUESTS

NUMBER

Number of physical write I/O requests issued by the monitored SQL

PHYSICAL_WRITE_BYTES

NUMBER

Number of bytes written to disks by the monitored SQL

OPTIMIZED_PHY_READ_REQUESTS

NUMBER

Number of physical read I/O requests from Database Smart Flash Cache issued by the monitored SQL

LOCKED_TOTAL

NUMBER

Total number of times the child cursor has been locked

PINNED_TOTAL

NUMBER

Total number of times the child cursor has been pinned

IO_CELL_UNCOMPRESSED_BYTES

NUMBER

Number of uncompressed bytes (that is, size after decompression) that are offloaded to the Exadata cells

See Also: Oracle Exadata Storage Server Software documentation for more information

IO_CELL_OFFLOAD_RETURNED_BYTES

NUMBER

Number of filtered bytes returned by Exadata cells (that is, the number of bytes returned after  processing has been offloaded on the Exadata cells)

See Also: Oracle Exadata Storage Server Software documentation for more information

CON_ID

NUMBER

The ID of the container to which the data pertains. Possible values include:

• 0: This value is used for rows containing data that pertain to the entire CDB. This value is also used for rows in non-CDBs.

• 1: This value is used for rows containing data that pertain to only the root

• n: Where n is the applicable container ID for the rows containing data

IS_REOPTIMIZABLE

VARCHAR2(1)

This column shows whether the next execution matching this child cursor will trigger a reoptimization. The values are:

• Y: If the next execution will trigger a reoptimization

• R: If the child cursor contains reoptimization information, but will not trigger reoptimization because the cursor was compiled in reporting mode

• N: If the child cursor has no reoptimization information

IS_RESOLVED_ADAPTIVE_PLAN

VARCHAR2(1)

This column shows whether all of the adaptive parts of a plan have been resolved to the final plan. Once the plan is resolved, the plan hash value and the plan displayed by DBMS_XPLAN will not change through the end of execution. The values for this column are:

• NULL: If the plan is not adaptive

• Y: If the plan is fully resolved

• N: If the plan is not yet fully resolved

See Also: Oracle Database PL/SQL Packages and Types Reference for more information about the DBMS_XPLAN package

IM_SCANS

NUMBER

Number of In-Memory Column Store (IM column store) segment scans

IM_SCAN_BYTES_UNCOMPRESSED

NUMBER

Uncompressed size of data scanned from the IM column store

IM_SCAN_BYTES_INMEMORY

NUMBER

In-memory size of data scanned from the IM column store

DDL_NO_INVALIDATE

VARCHAR2(1)

Indicates if a DDL statement updated a dependent object and did not invalidate this cursor. The values are:

• N: There has not been a DDL statement that updated a dependent object without invalidating this cursor.

• Y: A DDL statement updated a dependent object and did not invalidate this cursor, but the cursor has not executed since this happened.

• X: A DDL statement updated a dependent object and did not invalidate this cursor, and the cursor has executed since this happened.

IS_ROLLING_INVALID

VARCHAR2(1)

Indicates if this cursor is rolling invalidated. The values are:

• N: This cursor is not rolling invalidated.

• Y: This cursor is rolling invalidated, but the cursor has not executed in this state.

• X: This cursor is rolling invalidated, and the cursor has executed in this state.

IS_ROLLING_REFRESH_INVALID

VARCHAR2(1)

Indicates if this cursor is rolling invalidated and requires execution time refresh. The values are:

• N: This cursor is not a cursor that is rolling invalidated and requires execution time refresh.

• Y: This cursor is rolling invalidated and requires execution time refresh, but the cursor has not executed in this state.

• X: This cursor is rolling invalidated and requires execution time refresh, and the cursor has executed in this state.

RESULT_CACHE

VARCHAR2(1)

Indicates whether the SQL statement used the result cache (Y) or not (N)

SQL_QUARANTINE

VARCHAR2(128)

If the execution plan for this cursor is quarantined, then this column contains the name of the SQL quarantine configuration (corresponds to the NAME column in the DBA_SQL_QUARANTINE view). Otherwise, this column is null.

AVOIDED_EXECUTIONS

NUMBER

Number of times this cursor was prevented from being used due to the plan being quarantined

HEAP0_LOAD_TIME^Foot 1

DATE

Time at which heap0 of the library cache object was loaded

HEAP6_LOAD_TIME^Foot 1

DATE

Time at which heap6 of the library cache object was loaded

A time difference of more than one minute between HEAP0_LOAD_TIME and HEAP6_LOAD_TIME indicates that heap6 has been partially reloaded. For example, the database might have aged out heap6 due to shared pool space pressure and reloaded it at a later time.