DBA_HIST_PLAN_OPERATION_NAME

DBA_HIST_PLAN_OPERATION_NAME displays historical information about SQL plan operation names.

Column	Datatype	NULL	Description
`DBID`	`NUMBER`	`NOT NULL`	Database identifier
`OPERATION_ID`	`NUMBER`	`NOT NULL`	Plan operation identifier
`OPERATION_NAME`	`VARCHAR2(64)`		Plan operation name. This value also appears in the `SQL_PLAN_OPERATION` column of the `DBA_HIST_ACTIVE_SESS_HISTORY` view.
`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