| Error | ORA-13711 |
Description | Some snapshots in the range [string, string] are missing key statistics. | Cause | Some AWR tables encountered errors while taking one ore more snapshots in the given range. The missing table, being one of the key tables that ADDM looks at, renders ADDM unable to run. | Action | Look in DBA_HIST_SNAP_ERROR to find what tables are missing in the given snapshot range. Use the ERROR_NUMBER column in that view together with the alert log to identify the reason for failure and take necessary action to prevent such failures in the future. Try running ADDM on a different snapshot range that doesn`t include any incomplete snapshots. |