`DROP``USER``username@localhost;`
`SELECT``User``, Host` `FROM``user``;`
設置安全性
set global validate_password_policy=0;
遠程訪問
也就是最高權限
grant all privileges on *.* to root@'%' identified by "Aa123456";
更新用戶
https://www.cnblogs.com/SZxiaochun/p/6401424.html
