Ошибка запроса: 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 '' at line 1

SQL:SELECT COUNT(*) FROM wn_model_year WHERE brand_id=

Ошибка запроса: 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 '' at line 1

SQL:SELECT c_type FROM w_brand WHERE id=