SELECT IF(sum(received_quantity) is null ,0,sum( received_quantity) ) AS signingNumber FROM logpm_distribution_loadscan WHERE is_deleted = 0 AND reservation_id = #{reservationId} AND delivery_id = #{deliveryId} AND order_id = #{orderId} AND scan_status != 1
SELECT IFNULL(sum(received_quantity),0) AS signingNumber FROM logpm_distribution_loadscan WHERE is_deleted = 0 AND reservation_id = #{reservationId} AND delivery_id = #{deliveryId} AND order_id = #{orderId} AND scan_status != 1