MySQL访问权限

1、创建用户

语法：grant privileges on * | *.* |db_name.* |db_name.tbl_name to 'user'@'host' identified by 'password' with with_option

例如：grant usage on db_test.tbl_user to 'super'@'localhost' identified by '123456' with grant option;

 

2、授权

语法：grant privileges on * | *.* |db_name.* |db_name.tbl_name to 'user'@'host' identified by 'password' with with_option

例如：grant select,update on db_test.tbl_user to 'super'@'localhost' identified by '123456' with MAX_USER_CONNECTIONS 3;

 

3、撤消权限

语法：revoke privileges on * | *.* |db_name.* |db_name.tbl_name from 'user'@'host';

例如：revoke insert on db_test.tbl_user from 'super'@'localhost';

 

4、删除用户

语法：drop user 'user'@'host';

例如：drop user 'super'@'localhost';

 

5、修改密码

例如：把root密码由123456改为空

mysqladmin -uroot -p123456 password ''