ORA-16387
Transaction commit failed due to string.
Cause
This error is caused by one of the following reasons:
- The LOG_ARCHIVE_DEST_n initialization parameter with the APPLY_PROTECTION attribute is not in a VALID state (destination is unreachable).
- The LOG_ARCHIVE_DEST_n initialization parameter with the EXTERNAL_CONSISTENCY attribute is not in a VALID state (destination is unreachable).
- The recovery is not running on the standby database.
Action
Fix the issues identified in the Cause and and retry the operation.