ORA-16053: DB_UNIQUE_NAME string is not in the Data Guard Configuration

Cause: The specified DB_UNIQUE_NAME is not in the Data Guard Configuration.

Action: If the DG_CONFIG attribute of the LOG_ARCHIVE_CONFIG parameter is enabled, you must specify a valid DB_UNIQUE_NAME. The list of valid DB_UNIQUE_NAMEs can be seen with the V$DATAGUARD_CONFIG view. This problem can also occur when specifying a non-standby destination with an DB_UNIQUE_NAME attribute that does not match the DB_UNIQUE_NAME initialization parameter for the current instance.

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