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mysql 增加用户

Jun 07, 2016 pm 03:52 PM
mysqlsqlcodeIncreaseNewuser

1. 新增用户 Sql代码 mysql insert into mysql. user (Host, User , Password ) values ( localhost , lionbule , password ( hello1234 )); mysqlflush privileges ; 或者 CREATEUSER ' username'@'host 'IDENTIFIEDBY'password'; 例子:CREATEUSER'dog'@'lo

1. 新增用户

Sql代码  mysql 增加用户

  1. mysql>insert into mysql.user(Host,User,Passwordvalues("localhost","lionbule",password("hello1234"));  
  2. mysql>flush privileges;  

 或者

CREATE USER 'username'@'host' IDENTIFIED BY 'password';

   例子: CREATE USER 'dog'@'localhost' IDENTIFIED BY '123456';

               CREATE USER 'pig'@'192.168.1.101_' IDENDIFIED BY '123456';

               CREATE USER 'pig'@'%' IDENTIFIED BY '123456';

               CREATE USER 'pig'@'%' IDENTIFIED BY '';

               CREATE USER 'pig'@'%';


2. 修改用户密码

Sql代码  mysql 增加用户

  1. mysql>update mysql.user set password=password('new password'where User="lionbule" and Host="localhost";  
  2. mysql>flush privileges;  

a.       使用mysqladmin语法:mysqladmin -u用户名 -p旧密码 password 新密码

例如:mysqladmin -u root -p 123 password 456;

或者

SET PASSWORD FOR 'username'@'host' = PASSWORD('newpassword');

如果是当前登陆用户用SET PASSWORD = PASSWORD("newpassword");




3. 删除用户

Sql代码  mysql 增加用户

  1. mysql>DELETE FROM user WHERE User="lionbule" and Host="localhost";  
  2. mysql>flush privileges;  

 或者

drop user username@'%'

drop user username@localhost



4. 权限分配

    4.1. grant用法

           grant 权限 on 数据库.* to 用户名@'登录主机' identified by '密码'

Doc代码  mysql 增加用户

  1. 权限:  
  2.     常用总结, ALL/ALTER/CREATE/DROP/SELECT/UPDATE/DELETE  
  3. 数据库:  
  4.      *.*                    表示所有库的所有表  
  5.      test.*                表示test库的所有表  
  6.      test.test_table  表示test库的test_table表       
  7. 用户名:  
  8.      mysql账户名  
  9. 登陆主机:  
  10.      允许登陆mysql server的客户端ip  
  11.      '%'表示所有ip  
  12.      'localhost' 表示本机  
  13.      '192.168.10.2' 特定IP  
  14. 密码:  
  15.       账户对应的登陆密码  

取消授权用户:

语法:REVOKE privilege ON databasename.tablename FROM 'username'@'host';

例子: REVOKE SELECT ON *.* FROM 'pig'@'%';

  REVOKE SELECT ON test.user FROM 'pig'@'%';

  revoke all on *.* from sss@localhost ;

  revoke all on user.* from 'admin'@'%';

      SHOW GRANTS FOR 'pig'@'%';     //查看授权

取消授权用户:

语法:REVOKE privilege ON databasename.tablename FROM 'username'@'host';

例子: REVOKE SELECT ON *.* FROM 'pig'@'%';

  REVOKE SELECT ON test.user FROM 'pig'@'%';

  revoke all on *.* from sss@localhost ;

  revoke all on user.* from 'admin'@'%';

      SHOW GRANTS FOR 'pig'@'%';     //查看授权



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