mysql数据库添加用户与用户权限

mysql数据库添加用户及分配权限的方法。

1，创建用户并分配权限； 

insert into mysql.user(Host,User,Password) values("localhost","phplamp",password("1234"));//创建用户
grant all privileges on dbname.* to 'username'@'%' identified by 'password';//创建用户并分配所有权限
grant select,update on phplampDB.* to phplamp@localhost identified by '1234';//创建用户并分配权限
update mysql.user set password=password('新密码') where User="phplamp" and Host="localhost";//修改用户密码

2，删除用户指定权限 

revoke insert,update,delete,select ON *.* from 'xbb'@'localhost' IDENTIFIED BY '123';