salix/db/routines/vn/triggers/expedition_beforeDelete.sql

13 lines
346 B
SQL

DELIMITER $$
CREATE OR REPLACE DEFINER=`vn`@`localhost` TRIGGER `vn`.`expedition_beforeDelete`
BEFORE DELETE ON `expedition`
FOR EACH ROW
BEGIN
UPDATE ticket t
SET packages = (SELECT COUNT(counter)-1
FROM expedition e WHERE e.ticketFk = OLD.ticketFk and e.freightItemFk)
WHERE t.id = OLD.ticketFk;
END$$
DELIMITER ;