Mysql 4.1 Windows 下升级问题

使用PHPMYADMIN时报错：
Client does not support authentication protocol requested
by server; consider upgrading MySQL client

官方的说法是

MySQL 4.1 and up uses an authentication protocol based on a password hashing algorithm that is incompatible with that used by older clients. .....

如果你升级mysql到4.1以上版本后遇到以上问题,请先确定你的mysql client 是4.1或者更高版本.（WINDOWS下有问题你就直接跳到下面看解决方法了,因为MYSQL 在WINDOWS是client和server一起装上了的）

请使用以下两种方法之一

其一:

mysql> SET PASSWORD FOR
-> "some_user"@"some_host" = OLD_PASSWORD（"newpwd"）;

其二:

mysql> UPDATE mysql.user SET Password = OLD_PASSWORD（"newpwd"）
-> WHERE Host = "some_host" AND User = "some_user";
mysql> FLUSH PRIVILEGES;
（出处：Viphot）