ORA-16052:DB_UNIQUE_NAME attribute is required. Cause: DB_UNIQUE_NAME attribute was not specified. The valueof the LOG_
ARCHIVE_DEST_n parameter for each remote redo transport destination must
contain the DB_UNIQUE_NAME attribute if the LOG_ARCHIVE_CONFIG
parameter value contains the DG_CONFIG attribute. Action: Usethe DB_UNIQUE_NAME attribute to specify the DB_UNIQUE_
NAME for the destination.