Mysql与MysqlODBC连接错误:Client does not support authentication protocol requested...--------------
Mysql与MysqlODBC连接错误:Client does not support authentication protocol requested...
---------------------------------------华丽的分割线-----------------------------------------
问题描述：
mysql5.0与mysqlodbc3.51建立连接：无法建立一个访问“mysql"数据库的系统dsn。（root帐号密码都没错，”cmd”下可以正常登录）
测试数据原时有错误提示：
[MySQL][ODBC 3.51 Driver] Client does not support authentication protocol requested by server;consider upgrading MySQL client
?
解决办法:
SET PASSWORD FOR 用户名@localhost = OLD_PASSWORD('密码');
?
以下为官方说明：
?
Reset the password to pre-4.1 style for each user that needs to use a pre-4.1 client program. This can be done using the SET PASSWORD statement and the OLD_PASSWORD() function:
mysql> SET PASSWORD FOR
-> 'some_user'@'some_host' = OLD_PASSWORD('newpwd');
Alternatively, use UPDATE and FLUSH PRIVILEGES:
mysql> UPDATE mysql.user SET Password = OLD_PASSWORD('newpwd')
-> WHERE Host = 'some_host' AND User = 'some_user';
mysql> FLUSH PRIVILEGES;
Substitute the password you want to use for ``newpwd'' in the preceding examples. MySQL cannot tell you what the original password was, so you'll need to pick a new one.
Tell the server to use the older password hashing algorithm:
Start mysqld with the --old-passwords option.
Assign an old-format password to each account that has had its password updated to the longer 4.1 format. You can identify these accounts with the following query:
mysql> SELECT Host, User, Password FROM mysql.user
-> WHERE LENGTH(Password) > 16;
For each account record displayed by the query, use the Host and User values and assign a password using the OLD_PASSWORD() function and either SET PASSWORD or UPDATE, as described earlier.
For additional background on password hashing and authentication, see section 5.5.9 Password Hashing in MySQL 4.1. ?
?
1 楼 zhaorongrong0720 2012-06-13 你好，有问题想问你，我现在出现了同样的错误，请问你所写的解决办法：SET PASSWORD FOR 用户名@localhost = OLD_PASSWORD('密码');这段代码该写在哪里呢？或者能不能解释的具体点？谢谢了！ 2 楼 hanyezhiyu8 2012-06-15 zhaorongrong0720 写道你好，有问题想问你，我现在出现了同样的错误，请问你所写的解决办法：SET PASSWORD FOR 用户名@localhost = OLD_PASSWORD('密码');这段代码该写在哪里呢？或者能不能解释的具体点？谢谢了！
方法1.用查询语句写。如果有Navicat或其它mysql界面管理工具，先打开数据库选查询工具，创建查询，将上述语句运行一下。
方法2.用mysql命令，如官方所写。如果有Navicat或其它mysql界面管理工具，在数据库上右键，选中“Concole”，打开命令行后按照博文中说明运行就行。
