DELIMITER $$ CREATE OR REPLACE DEFINER=`vn`@`localhost` TRIGGER `vn`.`business_afterUpdate` AFTER UPDATE ON `business` FOR EACH ROW BEGIN CALL worker_updateBusiness(NEW.workerFk); IF NOT (OLD.workerFk <=> NEW.workerFk) THEN CALL worker_updateBusiness(OLD.workerFk); END IF; END$$ DELIMITER ;