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 'and pc_code = order by p_id desc LIMIT 0,1' at line 1

select p_title,p_id,wjm from project where p_id < and pc_code = order by p_id desc LIMIT 0,1

Filename: D:\wwwroot\zjtydn\wwwroot\system\database\DB_driver.php

Line Number: 330