mysql新增用户，用户授权，删除用户

查询所有用户

select * from mysql.user;

增加用户

insert into mysql.user(Host,User,Password) values("%","admin",password("SP@temobi"));

flush privileges;  这一步骤很重要，要不然会报错！所以必须执行！

新建数据库授权给admin用户

create database sqview;

grant all privileges on sqview.* to admin;

flush privileges;

删除用户

DELETE FROM mysql.user WHERE User="admin" and Host="%";