DELIMITER $$ CREATE OR REPLACE DEFINER=`root`@`localhost` TRIGGER `vn`.`ticketService_afterUpdate` AFTER UPDATE ON `ticketService` FOR EACH ROW BEGIN IF !(NEW.price <=> OLD.price) OR !(NEW.ticketFk <=> OLD.ticketFk) OR !(NEW.quantity <=> OLD.quantity) THEN CALL ticket_requestRecalc(NEW.ticketFk); CALL ticket_requestRecalc(OLD.ticketFk); END IF; END$$ DELIMITER ;