- 问题: 查询当"课程" 等于子查询里面的课程信息 - 出错指令: [Err] 1242 - Subquery returns more than 1 row 开始出错时的SQL -- 省略部分 CASE WHEN kcmc = (SELECT kcmc FROM t_sdrs_xscj WHER Read More
posted @ 2020-08-11 14:37 Yuezc Views(10902) Comments(0) Diggs(1) Edit