How to fix the Oracle error ORA-13711: Some snapshots in the range [string, string] are missing key statistics.?

In this post, you’ll learn more about the Oracle ErrorORA-13711: Some snapshots in the range [string, string] are missing key statistics. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-13711: Some snapshots in the range [string, string] are missing key statistics.

Reason for the Error ORA-13711: Some snapshots in the range [string, string] are missing key statistics.

Some AWR tables encountered errors while creating one or more snapshots in the given range. The data present in one or more of these missing tables is necessary to perform an ADDM analysis.

How to fix the Error ORA-13711: Some snapshots in the range [string, string] are missing key statistics. ?

You can fix this error in Oracle by following the below steps

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 does not include any incomplete snapshots.