salix/db/routines/vn/triggers/expeditionPallet_beforeInse...

17 lines
372 B
SQL

DELIMITER $$
CREATE OR REPLACE DEFINER=`root`@`localhost` TRIGGER `vn`.`expeditionPallet_beforeInsert`
BEFORE INSERT ON `expeditionPallet`
FOR EACH ROW
BEGIN
DECLARE vNewPosition INT;
SELECT MAX(position) + 1 INTO vNewPosition
FROM vn.expeditionPallet
WHERE truckFk = NEW.truckFk;
SET NEW.position = IFNULL(vNewPosition,1);
END$$
DELIMITER ;