1. Database Reference
  2. Static Data Dictionary Views
  3. Static Data Dictionary Views: DBA_HIST_LATCH to DBA_STORED_SETTINGS
  4. DBA_HIST_OPTIMIZER_ENV

5.14 DBA_HIST_OPTIMIZER_ENV

DBA_HIST_OPTIMIZER_ENV displays the optimizer environments that have been captured in the Workload Repository.

This view is used with the DBA_HIST_SQLSTAT view.

Column Datatype NULL Description

DBID

NUMBER

NOT NULL

Database ID

OPTIMIZER_ENV_HASH_VALUE

NUMBER

NOT NULL

Hash value for the optimizer environment

OPTIMIZER_ENV

RAW(2000)

Optimizer environment

CON_DBID

NUMBER

The database ID of the PDB for the sampled session

CON_ID

NUMBER

The ID of the container that CON_DBID identifies. 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:

"DBA_HIST_SQLSTAT"