Oracle® Database 11g / 12c / 18c error codes ORA-01562: failed to extend rollback segment number [string]
ORA-01562: failed to extend rollback segment number [string]
Oracle Error Code: ORA-01562
Cause: Failure occurred when trying to extend rollback segment
Action: This is normally followed by another error message that caused the failure. You may take the rollback segment offline to perform maintainence. Use the alter rollback segment offline command to take the rollback segment offline.