<ERROR /> Exception reçue

DBStatement::execute() statement fail :

SELECT
                            phototheque.id,
                            phototheque.titre,
                            phototheque.extension
                        FROM
                            phototheque_produits
                        LEFT JOIN
                            phototheque on phototheque_produits.phototheque_id = phototheque.id
                        WHERE
                            phototheque_produits.parent_id = 
                        AND
                            phototheque_produits.section = 'principal'
                        LIMIT
                            0,1
                        

Array
(
    [0] => 42000
    [1] => 1064
    [2] => 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
                            phototheque_produits.section = 'principal'
   ' at line 11
)

/var/www/vhosts/croustipate.com/httpdocs/apps/classes/Phototheque.php @ line 25

DBStatement->execute()