UPDATE _solutionsorientation.t_group_questions SET group_id='', user_id='', comm_question_date='', comm_question='', comm_question_title='', id_pere='', avis_id='', hit='1', valid='', smiley='' WHERE comm_question_id= : 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 11