Mysql 筛选表,然后连接结果
我正在尝试按id筛选表集合,然后在users.user\u id上加入collections.user\u id 这是我尝试过的问题Mysql 筛选表,然后连接结果,mysql,Mysql,我正在尝试按id筛选表集合,然后在users.user\u id上加入collections.user\u id 这是我尝试过的问题 SELECT * FROM (SELECT * FROM collections WHERE mid=`$id`) c JOIN users on c.mid = users.user_id ORDER BY users.user_id 显然还没能让它工作。任何帮助或指点都将不胜感激 CREATE TABLE `collections` ( `use
SELECT * FROM
(SELECT * FROM collections WHERE mid=`$id`) c
JOIN users on c.mid = users.user_id ORDER BY users.user_id
显然还没能让它工作。任何帮助或指点都将不胜感激
CREATE TABLE `collections` (
`user_id` int(11) NOT NULL,
`mid` int(11) NOT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8;
CREATE TABLE `users` (
`user_id` int(11) NOT NULL AUTO_INCREMENT,
`api_public` varchar(32) DEFAULT NULL,
`api_secret` varchar(32) NOT NULL,
UNIQUE KEY `unique id` (`user_id`)
) ENGINE=MyISAM AUTO_INCREMENT=4 DEFAULT CHARSET=utf8;
这个怎么样:
SELECT c.*, u.* FROM collections c
JOIN users u ON c.mid = ? AND c.mid = u.user_id
ORDER BY u.user_id
(其中?
当然是参数标记)。您能试试这个吗
SELECT *
FROM collections A
JOIN users B ON A.mid = B.user_id
AND A.mid = 'value of $id'
ORDER BY B.user_id
工作得很好。只需将A.mid上的“B”更改为A.user\u id上的“B”。