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Oracle9i Database Reference
Release 2 (9.2)

Part Number A96536-02
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V$SQLAREA

V$SQLAREA lists statistics on shared SQL area and contains one row per SQL string. It provides statistics on SQL statements that are in memory, parsed, and ready for execution.

Column Datatype Description

SQL_TEXT

VARCHAR2(1000)

First thousand characters of the SQL text for the current cursor

SHARABLE_MEM

NUMBER

Amount of shared memory used by a cursor. If multiple child cursors exist, then the sum of all shared memory used by all child cursors.

PERSISTENT_MEM

NUMBER

Fixed amount of memory used for the lifetime of an open cursor. If multiple child cursors exist, the fixed sum of memory used for the lifetime of all the child cursors.

RUNTIME_MEM

NUMBER

Fixed amount of memory required during execution of a cursor. If multiple child cursors exist, the fixed sum of all memory required during execution of all the child cursors.

SORTS

NUMBER

Sum of the number of sorts that were done for all the child cursors

VERSION_COUNT

NUMBER

Number of child cursors that are present in the cache under this parent

LOADED_VERSIONS

NUMBER

Number of child cursors that are present in the cache and have their context heap (KGL heap 6) loaded

OPEN_VERSIONS

NUMBER

The number of child cursors that are currently open under this current parent

USERS_OPENING

NUMBER

The number of users that have any of the child cursors open

FETCHES

NUMBER

Number of fetches associated with the SQL statement

EXECUTIONS

NUMBER

Total number of executions, totalled over all the child cursors

USERS_EXECUTING

NUMBER

Total number of users executing the statement over all child cursors

LOADS

NUMBER

The number of times the object was loaded or reloaded

FIRST_LOAD_TIME

VARCHAR2(19)

Timestamp of the parent creation time

INVALIDATIONS

NUMBER

Total number of invalidations over all the child cursors

PARSE_CALLS

NUMBER

The sum of all parse calls to all the child cursors under this parent

DISK_READS

NUMBER

The sum of the number of disk reads over all child cursors

BUFFER_GETS

NUMBER

The sum of buffer gets over all child cursors

ROWS_PROCESSED

NUMBER

The total number of rows processed on behalf of this SQL statement

COMMAND_TYPE

NUMBER

The Oracle command type definition

OPTIMIZER_MODE

VARCHAR2(10)

Mode under which the SQL statement was executed

PARSING_USER_ID

NUMBER

The user ID of the user that has parsed the very first cursor under this parent

PARSING_SCHEMA_ID

NUMBER

The schema ID that was used to parse this child cursor

KEPT_VERSIONS

NUMBER

The number of child cursors that have been marked to be kept using the DBMS_SHARED_POOL package

ADDRESS

RAW(4 | 8)

Address of the handle to the parent for this cursor

HASH_VALUE

NUMBER

Hash value of the parent statement in the library cache

MODULE

VARCHAR2(64)

Contains the name of the module that was executing at the time that the SQL statement was first parsed as set by calling DBMS_APPLICATION_INFO.SET_MODULE

MODULE_HASH

NUMBER

Hash value of the module that is named in the MODULE column

ACTION

VARCHAR2(64)

Contains the name of the action that was executing at the time that the SQL statement was first parsed as set by calling DBMS_APPLICATION_INFO.SET_ACTION

ACTION_HASH

NUMBER

Hash value of the action that is named in the ACTION column

SERIALIZABLE_ABORTS

NUMBER

Number of times the transaction fails to serialize, producing ORA-08177 errors, totalled over all the child cursors

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.

CHILD_LATCH

NUMBER

Child latch number that is protecting the cursor