数据库常用命令

创建一个MySQL用户

CREATE USER 'root'@'localhost' IDENTIFIED BY '123456';

查询用户是否有远程连接的权限

select host,user from user where user = 'root';

授予远程连接权限

GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '123456' WITH GRANT OPTION;

授予 增/删/改/查 的权限

GRANT [权限] ON [库.表] TO '用户名'@'IP' IDENTIFIED BY [密码];

修改密码

ALTER USER 'root'@'%' IDENTIFIED BY '123456';

删除用户

DELETE FROM user WHERE User="root" and Host="%";

刷新权限（修改完权限都需要）

FLUSH PRIVILEGES;