SQL error:<br>SQL is:select id,title , keyword , type , class_id , amount , city , timelimit , statement , desire , img1 , img2 , img3 ,release_time from trade where userid='53306' and disabled='0'   order by id desc limit -10,10<br>Error msg: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 '-10,10' at line 1<br>In file:/usr/local/apache/ehome/mt/classes/BaseClass.class.php on line:301