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MySql中添加用户,新建数据库,用户授权,删除用户,修改密码_MySQL

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Release: 2016-06-01 13:44:10
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1.新建用户。

//登录MYSQL

@>mysql -u root -p

@>密码

//创建用户

mysql> mysql> insert into mysql.user(Host,User,Password,ssl_cipher,x509_issuer,x509_sub

ject) values("localhost","pppadmin",password("passwd"),'','','');

这样就创建了一个名为:phplamp 密码为:1234 的用户。

然后登录一下。

mysql>exit;

@>mysql -u phplamp -p

@>输入密码

mysql>登录成功

2.为用户授权。

//登录MYSQL(有ROOT权限)。我里我以ROOT身份登录.

@>mysql -u root -p

@>密码

//首先为用户创建一个数据库(phplampDB)

mysql>create database phplampDB;

//授权phplamp用户拥有phplamp数据库的所有权限。

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

//刷新系统权限表

mysql>flush privileges;

mysql>其它操作

/*

如果想指定部分权限给一用户,可以这样来写:

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

//刷新系统权限表。

mysql>flush privileges;

*/

3.删除用户。 

@>mysql -u root -p

@>密码

mysql>Delete FROM user Where User="phplamp" and Host="localhost";

mysql>flush privileges;

//删除用户的数据库

mysql>drop database phplampDB;

4.修改指定用户密码。

@>mysql -u root -p

@>密码

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

mysql>flush privileges;

5.列出所有数据库

mysql>show database;

6.切换数据库

mysql>use '数据库名';

7.列出所有表

mysql>show tables;

8.显示数据表结构

mysql>describe 表名;

9.删除数据库和数据表

mysql>drop database 数据库名;

mysql>drop table 数据表名;

 

作者gzh0222

bitsCN.com
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