ORA-13707: Either the start snapshot string or the end snapshot string is inc...

admin

ORA-13707: Either thestart snapshot string or the end snapshot string is incomplete
or missing key statistics.
Cause: Either the start or the end snaphots was missing orpurged or had
encountered errors while creating them.
Action: Verifythat AWR is done taking these two snapshots, or Look in DBA_
HIST_SNAP_ERROR to find what tables are missing in the start/end snapshots.
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 suchfailures in
the future. Try running ADDM on a different snapshot range that has valid start
and end snapshots.