mysql更新查询失败

Question

我的查询代码是：

$query = mysql_query("UPDATE books SET read = 'y' WHERE id = 2") or die(mysql_error());

，错误是：

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 'read = 'y' WHERE id = 2' at line 1

Answer 1

read是MySQL中的保留关键字。用反引号括起来：

UPDATE books SET `read` = 'y' WHERE id = '2'

有关保留关键字的列表，请参阅http://dev.mysql.com/doc/refman/5.1/en/reserved-words.html。