随笔分类 -  MySql

MySql语句执行顺序
摘要：Sql语句的执行顺序例：SELECT `name`,COUNT(`name`) AS num FROM student WHERE grade < 60 GROUP BY `name` HAVING num >= 2 ORDER BY num DESC,`name` ASC LIMIT 0,2; 1 阅读全文
posted @ 2019-03-22 11:39 崔赫的博客 阅读(446) 评论(0) 推荐(0)