linux为mysql用户授权 Linux环境 Mysql新建用户和数据库并授权

1.登录MysqL

#MysqL -u root -p

2.新增用户

insert into MysqL.user(Host,User,Password) values("localhost","xxx",password("***"));

注释：xxx为新建用户名，***为用户密码

3.执行该句后，还需要刷新权限表

flush privileges;

4.新建数据库并赋予用户权限

create database dbtest；

全部授权：

允许本地登录

grant all privileges on dbtest.to @L_301_0@ identified by "";

允许任何主机登录

grant all privileges on dbtest. to [emailprotected]‘%‘ identified by "";

部分授权：

grant select,update on dbtest.* to [emailprotected] identified by "***";

5.赋予权限，还需要再刷新权限表

flush privileges;

6.通过sql语句查询出新增结果

select user,host,password from MysqL.user;

delete from user where user=‘xxx’;

flush privileges;

drop database dbtest;

update MysqL.user set password=password(‘新密码’) where User=‘xxx‘ and Host=‘localhost‘;flush privileges;