Oracle® Database 11g / 12c / 18c error codes ORA-00229: operation disallowed: already hold snapshot control file enqueue

ORA-00229: operation disallowed: already hold snapshot control file enqueue

Oracle Error Code: ORA-00229

Cause: The attempted operation cannot be executed at this time because this process currently holds the snapshot control file enqueue.

Action: Retry the operation after calling cfileUseCurrent to release the snapshot control file enqueue.