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