登录命令

mysql -uroot -p21313

新建用户

insert into mysql.user(Host,User,Password) values("localhost","phplamp",password("1234"));

刷新权限

flush privileges;

创建数据库

create database 数据库名;

显示数据库

show database;

切换数据库

use 数据库名；

数据库授权

grant all privileges on phplampDB.* to phplamp@localhost identified by ‘1234‘;

grant select,update on phplampDB.* to phplamp@localhost identified by ‘1234‘;

删除用户

DELETE FROM user WHERE User="phplamp" and Host="localhost";

删除数据库

drop database 数据库名；

修改用户密码

update mysql.user set password=password(‘新密码‘) where User="phplamp" and Host="localhost";