<BR>select 
							review_id, 
							sum(helpful)as nr 
						from 
							reviews_washelpful 
						where 
							review_id in (  ) 
						group by review_id 
						order by nr desc <BR>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 ') 
						group by review_id 
						order by nr desc' at line 7