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 ')
ORDER BY id_product DESC' at line 4
SQL: 'SELECT P.id_product,P.filename
FROM product P, sc_product_category_ref R
WHERE P.id_product = R.id_product
AND R.id_category IN ()
ORDER BY id_product DESC ;'