授予特权以远程访问mysql数据库

Question

当我尝试授予特权以远程访问MySql 8.0数据库时。我收到以下错误。

命令：-

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

错误：-

 ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'IDENTIFIED BY 'password' WITH GRANT OPTION' at line 1

我试图检查可能出问题的地方，但似乎无法使其工作。非常感谢您的帮助。

此外，上一行中提到的此“密码” 的用途是什么？