The following is the ORA-16146 error message, you can learn the cause and solution of the Oracle database error.
ORA-16146 standby destination control file enqueue unavailable
Cause: The target standby destination control file is currently unavailable to the Remote File Server (RFS) process. This indicates that the target destination is the primary database itself.
Solution: Check for and eliminate the standby destination archive log parameter in question.
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