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 id_cat= order by stt asc' at line 1syntax error: select * from table_product_item where hienthi=1 and tenkhongdau='xe-tai-jac-n500-cho-gia-cam-xe-cho-ga-35-tan-950' and id_list= and id_cat= order by stt asc