DROP TRIGGER IF EXISTS `vn2008`.`expeditionsBeforeDelete`;

DELIMITER $$
USE `vn2008`$$
CREATE DEFINER=`root`@`%` TRIGGER `vn2008`.`expeditionsBeforeDelete`
BEFORE DELETE ON `expeditions` FOR EACH ROW
BEGIN
    UPDATE Tickets SET Bultos = (SELECT COUNT(counter)-1 
		FROM expeditions WHERE ticket_id = OLD.ticket_id and EsBulto)
		WHERE Id_Ticket = OLD.ticket_id;	
        
END$$
DELIMITER ;