DBA_OPTSTAT_OPERATIONS contains a history of statistics operations performed at the schema and database level using the DBMS_STATS package.
| Column | Datatype | NULL | Description | 
|---|---|---|---|
OPERATION | 
VARCHAR2(64) | 
Operation name | |
TARGET | 
VARCHAR2(64) | 
Target on which the operation was performed | |
START_TIME | 
TIMESTAMP(6) WITH TIME ZONE | 
Time at which the operation started | |
END_TIME | 
TIMESTAMP(6) WITH TIME ZONE | 
Time at which the operation ended |