Oracle® Database 11g / 12c / 18c error codes ORA-00230: operation disallowed: snapshot control file enqueue unavailable

ORA-00230: operation disallowed: snapshot control file enqueue unavailable

Oracle Error Code: ORA-00230

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

Action: Retry the operation after the concurrent operation that is holding the snapshot control file enqueue terminates.