数据库权限

Posted 2021-02-06 start20180703

：：1表示ip结尾是1的能通过root用户来访问这台机器的数据库

 

创建用户

CREATE USER ‘woaiwenmeng‘@‘127.0.0.1‘ IDENTIFIED BY ‘123‘

 

 

 查看用户权限

 

SHOW GRANTS FOR ‘woaiwenmeng‘@‘127.0.0.1‘;

 

 

 

 

授权

GRANT SELECT,UPDATE ON db1.info1 TO ‘woaiwenmeng‘@‘127.0.0.1‘;

 

　　授权了查询和修改功能，未授权的不能执行

　　有以下权限：

　　

 

GRANT ALL PRIVILEGES ON *.* TO ‘woaiwenmeng‘@‘127.0.0.1‘;#授予除了grant权限之外的所有权限

 

 

 

取消授权

REVOKE ALL PRIVILEGES ON *.* FROM ‘woaiwenmeng‘@‘127.0.0.1‘;#To变成了FROM   从指定用户下移除当前用户的所有授权

 

 

 

 

移除用户

DROP USER ‘woaiwenmeng‘@‘127.0.0.1‘;

 

 

修改用户

RENAME USER ‘woaiwenmeng‘@‘127.0.0.1‘ TO ‘wenmeng‘@‘192.168.0.1‘;

 

 

 

局域网连接测试：

CREATE USER ‘test‘@‘%‘ IDENTIFIED BY ‘123456‘;#%表示所有的ip

GRANT ALL PRIVILEGES ON *.* TO ‘test‘@‘%‘;

FLUSH PRIVILEGES;    #刷新权限