当我试图在SQL中进行散列时出现错误

Question

我想将数据库中明文形式的字符串与散列为MD5()的字符串进行比较。我试图做这样的事情：

SELECT member_email, is_validated FROM members 
WHERE CONVERT(VARCHAR(32), HASHBYTES('MD5', 'member_email'), 2) = '".$_GET['vy']."' 
AND is_validated = '0' 

但我得到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 'VARCHAR(32), HASHBYTES('MD5', 'member_email'), 2) = '' AND is_valida' at line 2。如果我删除''member_email'因此它的HASHBYTES('MD5', member_email)我会得到相同的错误信息。怎么了？我是否必须将MD5哈希放在数据库中，以便将其与$_GET['vy']中的相同MD5哈希进行比较？

在此先感谢！

Answer 1

MySQL有没有HASHBYTES()？ http://dev.mysql.com/doc/refman/5.6/en/encryption-functions.html

你试过：

SELECT member_email, is_validated FROM members 
WHERE CONVERT(VARCHAR(32), MD5(member_email), 2) = '".$_GET['vy']."' 
AND is_validated = '0'