zhongyue

嵌套子查询和join查询报错

2

## Question 表结构 CREATE TABLE `link_user_calss` ( `id` int(11) NOT NULL, `class_id` int(11) DEFAULT NULL, `t_id` int(11) DEFAULT NULL, `class_honor` varchar(255) DEFAULT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1;...