mysql 添加新用户 赋予权限

mysql -uroot -p

输入密码；

显示所有数据库

show databases;

选择库mysql

use mysql; 

查看所有用户

select * from userG;

创建新用户

grant all privileges on *.* to '用户名'@'可登录主机' identified by '密码' with grant option;

例

grant all privileges on *.* to 'test'@'%' identified by 'root' with grant option;

赋予新用户权限：

grant select,insert,update,delete on *.* to '用户名'@'可登录主机' identified by "密码";

例：

grant select,insert,update,delete on *.* to 'test'@'%' identified by "root";

刷新权限表

flush privileges;

查看所有用户

select * from userG;

Host：标识可访问的IP地址，新用户 可配置为 “%” 表示所以ip都可以访问到

查看mysql 开放端口

show global variables like 'port';