一看就懂的MySQL DCL使用

创建用户

CREATE USER 用户名@地址 IDENTIFIED BY '密码';
CREATE USER user1@localhost IDENTIFIED BY ‘123’; 
CREATE USER user2@’%’ IDENTIFIED BY ‘123’; 

给用户授权

GRANT 权限1, … , 权限n ON 数据库.* TO 用户名@IP
GRANT CREATE,ALTER,DROP,INSERT,UPDATE,DELETE,SELECT ON mydb1.* TO user1@localhost;
GRANT ALL ON mydb1.* TO user2@’%’;

撤销授权

REVOKE权限1, … , 权限n ON 数据库.* FORM 用户名
REVOKE CREATE,ALTER,DROP ON mydb1.* FROM user1@localhost;

查看用户权限

SHOW GRANTS FOR 用户名
SHOW GRANTS FOR user1@localhost;

删除用户

DROP USER 用户名
DROP USER user1@localhost;

修改用户密码

Use mysql;
UPDATE USER SET PASSWORD=PASSWORD(‘密码’) WHERE User=’用户名’;
FLUSH PRIVILEGES;
UPDATE USER SET PASSWORD=PASSWORD('1234') WHERE User='user2';
FLUSH PRIVILEGES;