mysql用户管理与权限

1、设置密码

set password for 用户名@localhost = password('密码');

2、取消密码

set password for 用户名@localhost = password('');

3、创建账号

create user admin identified by '123';

create user 'admin'@'%' identified by '123';

4、删除账号

delete from mysql.user where user=用户名;

drop user 用户名;

5、授权并建立账号

grant all privileges on *.* to 用户名@localhost；--创建一个只能本地登录的空密码用户

grant all privileges on *.* to '用户名'@localhost identified by 密码；--创建一个只能本地登录的用户

grant all privileges on *.* to '用户名'@'%': --创建一个可以远程登录的用户

6、收回权限

revoke all privileges on *.* from '用户名'@'%':