{ { DISCONNECT [ FROM SESSION ]
  | { TIMEOUT integer | NOTIMEOUT }
  }
| { NODELAY | DEFAULT DELAY | DELAY integer }
| NEXT integer
| { EXPIRE integer | NO EXPIRE }
| parallel_clause
| USING CURRENT LOGFILE
| UNTIL CHANGE integer
| THROUGH { [ THREAD integer ] SEQUENCE integer
          | ALL ARCHIVELOG
          | { ALL | LAST | NEXT } SWITCHOVER
          }
}
  [ { DISCONNECT [ FROM SESSION ]
    | { TIMEOUT integer | NOTIMEOUT }
    }
  | { NODELAY | DEFAULT DELAY | DELAY integer }
  | NEXT integer
  | { EXPIRE integer | NO EXPIRE }
  | parallel_clause
  | USING CURRENT LOGFILE
  | UNTIL CHANGE integer
  | THROUGH { [ THREAD integer ] SEQUENCE integer
            | ALL ARCHIVELOG
            | { ALL | LAST | NEXT } SWITCHOVER
            }
  ] ...