mysql Management - User Management

Original link: http://www.cnblogs.com/lifx/p/8590059.html

User-created

create user test@localhost identified by '123456'

User deletes

 drop user test@localhost

Change password

set command

set password for root@localhost=password('123456')

mysqladmin

mysqladmin -u用户名 -p旧密码 password 新密码 
mysqladmin -uroot -p123456 password 123

Forget your root password, they can so

1. 关闭正在运行的MySQL服务。 
2. 打开DOS窗口，转到mysql\bin目录。 
3. 输入mysqld --skip-grant-tables 回车。--skip-grant-tables 的意思是启动MySQL服务的时候跳过权限表认证。 
4. 再开一个D    OS窗口（因为刚才那个DOS窗口已经不能动了），转到mysql\bin目录。 
5. 输入mysql回车，如果成功，将出现MySQL提示符 >。 
6. 连接权限数据库： use mysql; 。 
6. 改密码：update user set password=password("123") where user="root";（别忘了最后加分号） 。 
7. 刷新权限（必须步骤）：flush privileges;　。 
8. 退出 quit。 
9. 注销系统，再进入，使用用户名root和刚才设置的新密码123登录

User authorization and to cancel the authorization

授权
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'FEFJay' WITH GRANT OPTION;
flush privileges;
取消授权


revoke  all on *.* from 'root'@'%' ;

Restrict access and remote login

It allows remote access to restricted access by authorized achieved.
% Allows all IP access, if you specify a specific IP, you can restrict access to specific IP.

限制IP10.10.11.12访问
GRANT ALL PRIVILEGES ON *.* TO 'root'@'10.10.11.12' IDENTIFIED BY 'FEFJay' WITH GRANT OPTION;

Reproduced in: https: //www.cnblogs.com/lifx/p/8590059.html