{ { ARCHIVELOG [ MANUAL ]
  | NOARCHIVELOG
  }
| [ NO ] FORCE LOGGING
| RENAME FILE 'filename'
              [, 'filename' ]...
TO 'filename'
| CLEAR
     [ UNARCHIVED ]
LOGFILE logfile_descriptor
                  [, logfile_descriptor ]...
     [ UNRECOVERABLE DATAFILE ]
| add_logfile_clauses
| drop_logfile_clauses
| supplemental_db_logging
}