DELIMITER $$
CREATE OR REPLACE DEFINER=`vn`@`localhost` TRIGGER `vn`.`department_afterDelete`
	AFTER DELETE ON `department`
	FOR EACH ROW
BEGIN
	
	UPDATE vn.department_recalc SET isChanged = TRUE;
	
	UPDATE vn.business b
		JOIN vn.department d ON d.id = b.departmentFk
		SET b.departmentFk = d.parentFk
		WHERE b.departmentFk = OLD.id;
END$$
DELIMITER ;