SELECT *
FROM room
WHERE room_no NOT IN
(
SELECT room_no
FROM booking
WHERE check_outdate >= @req_fdate
AND check_indate <= @red_tdate
)
AND room_no NOT IN
(
SELECT room_no
FROM reservation
WHERE check_outdate >= @req_fdate
AND check_indate <= @red_tdate
)
Vær opmærksom på rækkefølgen eller argumenterne:@req_fdate
her er den første date her (fra ), @req_tdate
er den sidste dato (indtil ).
For at tjekke for tilgængelighed fra Aug 16
til Aug 19
, brug denne:
SELECT *
FROM room
WHERE room_no NOT IN
(
SELECT room_no
FROM booking
WHERE check_outdate >= '2010-08-16'
AND check_indate <= '2010-08-19'
)
AND room_no NOT IN
(
SELECT room_no
FROM reservation
WHERE check_outdate >= '2010-08-16'
AND check_indate <= '2010-08-19'
)