000-mysql小技巧

1.使用Navicat 链接5.7版本出现

　　mysql 5.7.9 [Err] 1055报错解决，[Err] 1055 – Expression #1 of ORDER BY clause is not in GROUP BY

　使用：

SET sql_mode=(SELECT REPLACE(@@sql_mode,'ONLY_FULL_GROUP_BY',''));

2、