{ RETENTION POLICY { TO { RECOVERY WINDOW OF integer DAYS
                           | REDUNDANCY [=] integer
                           | NONE
                           }
                      | CLEAR
                      }
| MAXSETSIZE { TO { integer [ K | M | G ]
                    | UNLIMITED
                    }
               | CLEAR
               }
| { ARCHIVELOG | DATAFILE }
  BACKUP COPIES FOR DEVICE TYPE deviceSpecifier
  { TO integer | CLEAR }
| BACKUP OPTIMIZATION { ON | OFF | CLEAR }
| EXCLUDE FOR TABLESPACE tablespace_name [CLEAR]
}