{ SET DEFAULT
     { BIGFILE | SMALLFILE } TABLESPACE
| DEFAULT TABLESPACE tablespace
| DEFAULT TEMPORARY TABLESPACE
     { tablespace | tablespace_group_name }
| RENAME GLOBAL_NAME TO
     database.domain [.domain ]...
| { ENABLE BLOCK CHANGE TRACKING
    [ USING FILE 'filename' [ REUSE ] ]
  | DISABLE BLOCK CHANGE TRACKING
  }
| flashback_mode_clause
| set_time_zone_clause
}