SQL_TEXT

VARCHAR2(1000)

First thousand characters of the SQL text for the current cursor

SQL_FULLTEXT

CLOB

All characters of the SQL text for the current cursor

SQL_ID

VARCHAR2(13)

SQL identifier of the parent cursor in the library cache

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, then 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, then 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 loaded

OPEN_VERSIONS

NUMBER

Number of child cursors that are currently open under this current parent

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

Total number of executions, totalled over all the child cursors

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

Total number of users executing the statement over all child cursors

LOADS

NUMBER

Number of times the object was loaded or reloaded

FIRST_LOAD_TIME

VARCHAR2(76)

Timestamp of the parent creation time

INVALIDATIONS

NUMBER

Total number of invalidations over all the child cursors

PARSE_CALLS

NUMBER

Sum of all parse calls to all the child cursors under this parent

DISK_READS

NUMBER

Sum of the number of disk reads over all child cursors

DIRECT_WRITES

NUMBER

Sum of the number of direct writes over all child cursors

DIRECT_READS

NUMBER

Sum of the number of direct reads over all child cursors

BUFFER_GETS

NUMBER

Sum of buffer gets over all child cursors

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 processed on behalf of this SQL statement

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 that has parsed the very first cursor under this parent

PARSING_SCHEMA_ID

NUMBER

Schema ID that was used to parse this child cursor

PARSING_SCHEMA_NAME

VARCHAR2(128)

Schema name that was used to parse this child cursor

KEPT_VERSIONS

NUMBER

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

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.

MODULE

VARCHAR2(64)

Contains the name of the module that was executing when 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 when 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 failed to serialize, producing ORA-08177 errors, totalled over all the child cursors

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

VARCHAR2(40)

Outline session identifier

LAST_ACTIVE_CHILD_ADDRESS

RAW(4 | 8)

Address (identifier) of the child cursor that was the last to be active in the group (that is, the child cursor on behalf of which statistics in V$SQL were updated)

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

DATE

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.

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 used when the CURSOR_SHARING parameter is set to EXACT

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 bytes that are returned by Exadata cell through the regular I/O path

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 columns 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