关于mysql修改密码 set password for root@localhost = password('xxx');报错解决方法

当你安装好mysql后，发现mysql -u root -p直接按俩次enter竟然不用密码就能登录进去，可是navicat连接mysql需要密码啊。怎么办？
于是我通过百度寻觅良久发现多数都是通过下面的命令修改。但是自己执行时报下面的错。

mysql> set password for root@localhost = password('123456');
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 'passw
ord('123456')' at line 1

后来我通过下面的命令成功修改了密码。
SET PASSWORD FOR root@localhost = '123456';

mysql> SET PASSWORD FOR root@localhost = '123456';
Query OK, 0 rows affected (0.04 sec)

修改成功。

来源：https://www.cnblogs.com/jing-tian/p/12231780.html