MySQL创建新用户，并赋予root权限

创建新用户：

CREATE USER 'username'@'%' IDENTIFIED BY 'password';

赋予权限：

GRANT ALL PRIVILEGES ON *.* TO 'username'@'%' IDENTIFIED BY 'password' WITH GRANT OPTION;

原文链接：https://blog.csdn.net/qq_37674858/article/details/105252218