发生了一个数据库错误

Error Number: 1064

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 'ORDER BY `sid` desc' at line 4

SELECT * FROM (`product`) WHERE `sid` < ORDER BY `sid` desc

Filename: /home/wwwroot/vsunet.com/models/product_model.php

Line Number: 206