{ ADD { DATAFILE | TEMPFILE }
   [ file_specification
     [, file_specification ]...
   ]
| DROP {DATAFILE | TEMPFILE } { 'filename' | file_number }
| RENAME DATAFILE 'filename' [, 'filename' ]... TO
     'filename' [, 'filename' ]...
| { DATAFILE | TEMPFILE } { ONLINE | OFFLINE }
}