union合并查询结果

 出货单主表(Delivery)

 出货单货品规格明细表(DeliveryDetail)

 核销单主表(Check)

 核销单货品明细表(CheckGoods)

 核销单货品规格明细表(CheckDetail)

ALTER PROCEDURE  [dbo].[test]
@type char(200)=''

AS
BEGIN
if(@type='test_main')
begin

SELECT  (CASE WHEN Checkd.CheckID>0 THEN '核销单' else '不存在' end) as 项目, Checkd.CheckDate as 单据日期, CheckGoods.Goods_No as 货号,
CheckDetail.ColorID as 颜色, CheckDetail.Quantity as 数量, CheckGoods.UnitPric*CheckDetail.Quantity as 金额
FROM     Checkd
INNER JOIN CheckGoods ON Checkd.CheckID = CheckGoods.CheckID
INNER JOIN CheckDetail ON CheckDetail.CheckGoodsID=CheckGoods.CheckGoodsID

union  -- union合并表

SELECT   (CASE WHEN Delivery.DeliveryID>0 THEN '出货单' end) as 项目, Delivery.DeliveryDate as 单据日期, DeliveryGoods.Goods_No as 货号,
DeliveryDetail.ColorID as 颜色, DeliveryDetail.Quantity as 数量, DeliveryGoods.UnitPric*DeliveryDetail.Quantity as 金额
FROM     Delivery
INNER JOIN DeliveryGoods ON Delivery.DeliveryID = DeliveryGoods.DeliveryID
INNER JOIN DeliveryDetail ON	DeliveryDetail.DeliveryGoodsID= DeliveryGoods.DeliveryGoodsID

order by 项目 asc, 单据日期 desc,货号 desc,数量 desc --多条件排序

end
END