ALL_SQLSET_PLANS
describes captured plans for statements in the SQL tuning sets accessible to the current user.
DBA_SQLSET_PLANS
describes captured plans in the SQL tuning sets in the database.
USER_SQLSET_PLANS
describes captured plans for statements in the SQL tuning sets owned by the current user. This view does not display the SQLSET_OWNER
column.
Column | Datatype | NULL | Description |
---|---|---|---|
SQLSET_NAME |
VARCHAR2(30) |
NOT NULL |
Name of SQL tuning set for the statement |
SQLSET_ID |
NUMBER |
NOT NULL |
ID of SQL tuning set for the statement |
SQLSET_OWNER |
VARCHAR2(30) |
User name of SQL tuning set owner | |
SQL_ID |
VARCHAR2(13) |
NOT NULL |
SQL identifier of the parent cursor in the library cache |
FORCE_MATCHING_SIGNATURE |
NUMBER |
NOT NULL |
The signature used when the CURSOR_SHARING parameter is set to FORCE |
PLAN_HASH_VALUE |
NUMBER |
NOT NULL |
Numerical representation of the SQL plan for the 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). |
SQL_SEQ |
NUMBER |
NOT NULL |
SQL sequence |
STATEMENT_ID |
VARCHAR2(30) |
Statement ID | |
PLAN_ID |
NUMBER |
Plan ID | |
TIMESTAMP |
DATE |
Data and time timestamp | |
REMARKS |
VARCHAR2(4000) |
Remarks | |
OPERATION |
VARCHAR2(30) |
Name of the internal operation performed in this step (for example, TABLE ACCESS ) |
|
OPTIONS |
VARCHAR2(255) |
A variation on the operation described in the OPERATION column (for example, FULL ) |
|
OBJECT_NODE |
VARCHAR2(128) |
Name of the database link used to reference the object (a table name or view name). For local queries that use parallel execution, this column describes the order in which output from operations is consumed. | |
OBJECT_OWNER |
VARCHAR2(30) |
Name of the user who owns the schema containing the table or index | |
OBJECT_NAME |
VARCHAR2(30) |
Name of the table or index | |
OBJECT_ALIAS |
VARCHAR2(65) |
Alias for the object | |
OBJECT_INSTANCE |
NUMBER(38) |
Instance number for the object | |
OBJECT_TYPE |
VARCHAR2(30) |
Type of the object | |
OPTIMIZER |
VARCHAR2(255) |
Current mode of the optimizer for the first row in the plan (statement line), for example, CHOOSE . When the operation is a database access (for example, TABLE ACCESS ), this column indicates whether or not the object is analyzed. |
|
SEARCH_COLUMNS |
NUMBER |
Number of index columns with start and stop keys (that is, the number of columns with matching predicates) | |
ID |
NUMBER(38) |
NOT NULL |
A number assigned to each step in the execution plan |
PARENT_ID |
NUMBER(38) |
ID of the next execution step that operates on the output of the current step | |
DEPTH |
NUMBER(38) |
Depth (or level) of the operation in the tree. It is not necessary to issue a CONNECT BY statement to get the level information, which is generally used to indent the rows from the PLAN_TABLE table. The root operation (statement) is level 0. |
|
POSITION |
NUMBER(38) |
Order of processing for all operations that have the same PARENT_ID . |
|
COST |
NUMBER(38) |
Cost of the operation as estimated by the optimizer's cost-based approach. For statements that use the rule-based approach, this column is null. | |
CARDINALITY |
NUMBER(38) |
Estimate, made by the cost-based optimizer, of the number of rows produced by the operation | |
BYTES |
NUMBER(38) |
Estimate, made by the cost-based optimizer, of the number of bytes produced by the operation | |
OTHER_TAG |
VARCHAR2(255) |
Describes the contents of the OTHER column. For information about values, see EXPLAIN PLAN in Oracle Database Performance Tuning Guide. |
|
PARTITION_START |
VARCHAR2(255) |
Start partition of a range of accessed partitions | |
PARTITION_STOP |
VARCHAR2(255) |
Stop partition of a range of accessed partitions | |
PARTITION_ID |
NUMBER(38) |
Step that computes the pair of values of the PARTITION_START and PARTITION_STOP columns |
|
OTHER |
LONG |
Other information specific to the execution step that users may find useful. For information about values, see EXPLAIN_PLAN in Oracle Database Performance Tuning Guide. |
|
DISTRIBUTION |
VARCHAR2(30) |
Stores the method used to distribute rows from producer query servers to consumer query servers | |
CPU_COST |
NUMBER(38) |
CPU cost of the operation as estimated by the optimizer's cost-based approach. For statements that use the rule-based approach, this column is null. | |
IO_COST |
NUMBER(38) |
I/O cost of the operation as estimated by the optimizer's cost-based approach. For statements that use the rule-based approach, this column is null. | |
TEMP_SPACE |
NUMBER(38) |
Temporary space usage of the operation (sort or hash join) as estimated by the optimizer's cost-based approach. For statements that use the rule-based approach, this column is null. | |
ACCESS_PREDICATES |
VARCHAR2(4000) |
Predicates used to locate rows in an access structure. For example, start or stop predicates for an index range scan. | |
FILTER_PREDICATES |
VARCHAR2(4000) |
Predicates used to filter rows before producing them | |
PROJECTION |
VARCHAR2(4000) |
Expressions produced by the operation | |
TIME |
NUMBER(38) |
Elapsed time (in seconds) of the operation as estimated by the optimizer's cost-based approach. For statements that use the rule-based approach, this column is null. | |
QBLOCK_NAME |
VARCHAR2(30) |
Name of the query block | |
OTHER_XML |
CLOB |
Provides extra information specific to an execution step of the execution plan. The content of this column is structured using XML since multiple pieces of information can be stored there. This includes:
For further information about values, see |
|
EXECUTIONS |
NUMBER |
Number of times the plan has been executed | |
STARTS |
NUMBER |
Number of times this operation has been started, accumulated over the past executions | |
OUTPUT_ROWS |
NUMBER |
Number of rows produced by the row source, accumulated over the past executions | |
CR_BUFFER_GETS |
NUMBER |
Number of buffers received in consistent mode, accumulated over the past executions. Buffers are usually retrieved in consistent mode for queries. | |
CU_BUFFER_GETS |
NUMBER |
Number of buffers retrieved in current mode, accumulated over the past executions. Buffers are retrieved in current mode for statements such as INSERT , UPDATE , and DELETE . |
|
DISK_READS |
NUMBER |
Number of physical disk reads performed by the operation, accumulated over the past executions | |
DISK_WRITES |
NUMBER |
Number of physical disk writes performed by the operation, accumulated over the past executions | |
ELAPSED_TIME |
NUMBER |
Elapsed time (in microseconds) corresponding to this operation, accumulated over the past executions |