SELECT count(distinct cle4) FROM zdaxon WHERE REGEXP '[[:<:]]Tunique[[:>:]]' AND (prix>=1) AND cle1 REGEXP '[[:<:]]FEMME[[:>:]]' 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 'REGEXP '[[:<:]]Tunique[[:>:]]' AND (prix>=1) AND cle1 REGEXP '[[:<:]]FEMME[[:>:]' at line 1