我需要做什么:
销售订单表 - 名称: SalesOrder
SO | Part | SO_Qty |
--------------------------
SO1 | Part1 | 5 |
SO2 | Part2 | 7 |
SO3 | Part3 | 4 |
工作订单表 - 名称: JobOrder - ((所有打开的工作 - 按Due_Date排序)
SO | Part | JO | JO_Qty | Due_Date |
-----------------------------------------
SO1 | Part1 | JO1a | 6 | 11/01/16 |
SO1 | Part1 | JO1b | 5 | 11/10/16 |
SO2 | Part2 | JO2a | 3 | 11/01/16 |
SO2 | Part2 | JO2b | 2 | 11/08/16 |
SO2 | Part2 | JO2c | 9 | 11/18/16 |
SO3 | Part3 | JO3a | 4 | 12/05/16 |
SO3 | Part3 | JO3b | 2 | 12/20/16 |
结果表(这是我想看到的......)
SO | Part | SO_Qty | JO | JO_Qty | Due_Date |
-------------------------------------------------
SO1 | Part1 | 5 | JO1a | 6 | 11/01/16 |
SO2 | Part2 | 7 | JO2a | 3 | 11/01/16 |
SO2 | Part2 | 7 | JO2b | 2 | 11/08/16 |
SO2 | Part2 | 7 | JO2c | 9 | 11/18/16 |
SO3 | Part3 | 4 | JO3a | 4 | 12/05/16 |
我尝试过:
Select OD.*, SQ.jo, SQ.jo_qty, SQ.due_date
From SalesOrder AS OD
OUTER APPLY (Select jo, jo_qty, due_date
From JobOrder as JO
Where JO.so = OD.so AND JO.part = OD.part) AS SQ
无论作业单数量如何,都会返回所有匹配的作业单。那不是我想要的......
我的问题:我可以在子查询中使用while循环来过滤记录吗?
提前感谢您的帮助..
您可以使用的脚本:
;WITH SalesOrder AS (
SELECT *
FROM (VALUES
('SO1', 'Part1', 5),
('SO2', 'Part2', 7),
('SO3', 'Part3', 4)
) as t(SO, Part, SO_Qty)
), JobOrder AS (
SELECT *
FROM (VALUES
('SO1', 'Part1', 'JO1a', 6 , '11/01/16'),
('SO1', 'Part1', 'JO1b', 5 , '11/10/16'),
('SO2', 'Part2', 'JO2a', 3 , '11/01/16'),
('SO2', 'Part2', 'JO2b', 2 , '11/08/16'),
('SO2', 'Part2', 'JO2c', 9 , '11/18/16'),
('SO3', 'Part3', 'JO3a', 4 , '12/05/16'),
('SO3', 'Part3', 'JO3b', 2 , '12/20/16')
) as t(SO, Part, JO, JO_Qty, Due_Date)
)
答案 0 :(得分:0)
我认为你可以使用递归CTE解决它 - 它有点长,但这是我的最大努力...
WITH j AS
(
SELECT
jo.SO
,so.Part
,so.SO_Qty
,jo.JO
,jo.JO_Qty
,jo.Due_Date
,ROW_NUMBER() OVER(ORDER BY jo.SO, Due_Date) AS RowID
FROM #jobOrder jo
JOIN #SalesOrder so
ON jo.SO = so.SO
AND jo.Part = so.Part
)
,rCTE AS
(
SELECT
RowID
,SO
,Part
,SO_Qty
,JO
,JO_Qty
,Due_Date
,JO_Qty - SO_Qty AS Diff
FROM j
WHERE RowID = 1
UNION ALL
SELECT
j.RowID
,r.SO
,j.Part
,j.SO_Qty
,j.JO
,j.JO_Qty
,j.Due_Date
,CASE WHEN j.Part != r.Part OR (j.Part = r.Part AND Diff < 0) THEN
j.JO_Qty - j.SO_Qty
END
FROM rCTE r
JOIN j
ON j.RowID = r.RowID + 1
)
SELECT
*
FROM rCTE
WHERE Diff IS NOT NULL;