V$EXP_STATS

V$EXP_STATS stores the expression tracking statistics of recently executed queries.

Column Datatype Description
EXPID NUMBER Expression ID of the current expression
OBJNUM NUMBER The object number contained in the expression
DYNCOST NUMBER Optimizer dynamic cost of evaluating the expression
EVALCNT NUMBER Number of times the expression has been evaluated
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

See Also: