{ ARCHIVELOG | NOARCHIVELOG | ADD [STANDBY] LOGFILE [THREAD integer] [GROUP integer] filespec [, [GROUP integer] filespec]... | DROP LOGFILE logfile_descriptor [, logfile_descriptor]... | ADD [STANDBY] LOGFILE MEMBER 'filename' [REUSE] [, 'filename' [REUSE]]... TO logfile_descriptor [, logfile_descriptor]... | DROP LOGFILE MEMBER 'filename' [, 'filename']... | ADD SUPPLEMENTAL LOG DATA ( { PRIMARY KEY | UNIQUE INDEX } [, { PRIMARY KEY | UNIQUE INDEX }]... ) COLUMNS | DROP SUPPLEMENTAL LOG DATA | RENAME FILE 'filename' [, 'filename']... TO 'filename' | CLEAR [UNARCHIVED] LOGFILE logfile_descriptor [, logfile_descriptor]... [UNRECOVERABLE DATAFILE] }
For information on the symbols and conventions of Backus-Naur Form (BNF) syntax, see Appendix A.