Php 50%放射线堆垛溢流,100%实践和试验;-。它也有助于将问题分解成小部分。如果这样做,您将看到问题的每个子问题都已在stackoverflow上得到解决。您只需要将这些解决方案结合起来。 SELECT rooms_id, bed FROM reserv
50%放射线堆垛溢流,100%实践和试验;-。它也有助于将问题分解成小部分。如果这样做,您将看到问题的每个子问题都已在stackoverflow上得到解决。您只需要将这些解决方案结合起来。Php 50%放射线堆垛溢流,100%实践和试验;-。它也有助于将问题分解成小部分。如果这样做,您将看到问题的每个子问题都已在stackoverflow上得到解决。您只需要将这些解决方案结合起来。 SELECT rooms_id, bed FROM reserv,php,mysql,date,for-loop,Php,Mysql,Date,For Loop,50%放射线堆垛溢流,100%实践和试验;-。它也有助于将问题分解成小部分。如果这样做,您将看到问题的每个子问题都已在stackoverflow上得到解决。您只需要将这些解决方案结合起来。 SELECT rooms_id, bed FROM reservations WHERE `to` > '2016-02-18' AND `from` < '2016-02-24' ||||||||||||||||||||||||||||||||| || rooms_id || bed_nu
SELECT rooms_id, bed
FROM reservations
WHERE `to` > '2016-02-18' AND `from` < '2016-02-24'
|||||||||||||||||||||||||||||||||
|| rooms_id || bed_number ||
||||||||||||||||||||||||||||
|| 1 || 1 ||
----------------------------
|| 1 || 2 ||
----------------------------
|| 2 || 5 ||
----------------------------
|| 2 || 6 ||
----------------------------
|| 2 || 7 ||
----------------------------
|| 2 || 8 ||
----------------------------
SELECT *
FROM `rooms`
WHERE `id` NOT IN
(SELECT rooms_id FROM reservations WHERE `to` > '2016-02-18' AND `from` < '2016-02-24')
| room_id | title | beds_total | available_bed_nrs |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 1 | luxury room | 2 | 1, 2 |
| 2 | dorm room | 8 | 5, 6, 7, 8 |