SQL info: MySQL Query Error

Time: 2008-12-5 11:22am
Script: /tour/line_view.php

SQL: SELECT * FROM t_article WHERE ispass=1 AND isdel=0 AND uid= AND classid=28 limit 0, 10
Error: 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 classid=28 limit 0, 10' at line 1
Errno.: 1064