mysql 5.7报错

5.7.4版本后就有了这么一个东西Password Expiration Policy

mysql> show databases;
ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.

解决办法
1、 修改用户密码
mysql> alter user ‘root‘@‘localhost‘ identified by ‘youpassword‘;  

2、刷新权限
mysql> flush privileges;

mysql 5.7报错

原文：https://www.cnblogs.com/jo-yexing/p/8757326.html