ORA-00236: snapshot operation disallowed: mounted control file is a backup
What triggered the Error:
Attempting to invoke cfileSetSnapshotName, cfileMakeAndUseSnapshot, or cfileUseSnapshot when the currently mounted control file is a backup control file.What should we do to fix it:
Mount a current control file and retry the operation.
If this was not sufficient go over to:
Oracle Official Support Knowledge Center
Or maybe those geeks at: StackOverflow Board
Or maybe those geeks at: StackOverflow Board