A fatal MySQL error occured.

Query:
SELECT r.*, rt.rating FROM pmd_reviews r LEFT JOIN pmd_ratings rt ON r.id=rt.review_id WHERE r.listing_id= AND status='active' ORDER BY id DESC LIMIT 3

Error:
(1064) 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 status='active' ORDER BY id DESC LIMIT 3' at line 7