salix/db/routines/vn/procedures/route_updateM3.sql

DELIMITER $$
CREATE OR REPLACE DEFINER=`root`@`localhost` PROCEDURE `vn`.`route_updateM3`(
	vSelf INT
)
BEGIN
/**
 * Actualiza el volumen de la ruta.
 *
 * @param vSelf Id ruta
 */
	DECLARE vVolume DECIMAL(10,1)
		DEFAULT (SELECT SUM(volume) FROM saleVolume WHERE routeFk = vSelf);

	UPDATE `route`
		SET m3 = IFNULL(vVolume, 0)
		WHERE id = vSelf;
END$$
DELIMITER ;