delimiter //
CREATE TRIGGER dtb_products_update_date_name_update BEFORE UPDATE ON dtb_products
FOR EACH ROW
BEGIN
    IF NEW.name <> OLD.name THEN
        SET NEW.editor_name = (SELECT name FROM dtb_member WHERE member_id = NEW.creator_id);
        SET NEW.update_date_name = NOW();
    END IF;
END;//
delimiter ;