SHOW 
{ RETENTION POLICY 
| [DEFAULT] DEVICE TYPE 
| [AUXILIARY] CHANNEL [FOR DEVICE TYPE deviceSpecifier] 
| MAXSETSIZE 
| { DATAFILE | ARCHIVELOG } BACKUP COPIES 
| BACKUP OPTIMIZATION 
| SNAPSHOT CONTROLFILE NAME 
| AUXNAME 
| EXCLUDE
| CONTROLFILE AUTOBACKUP [FORMAT] 
| ALL
};