Итак, вот что я придумала.Я знаю, что это плохо, я не хотел оставлять эту нить высокой и сухой, и, возможно, я смогу получить более глубокое понимание лучшего пути.Пожалуйста, знайте, что я никогда не тренировался, поэтому я не знаю, чего не знаю.
Я закончил тем, что запустил это во временную таблицу и изменил закомментированный раздел в таблице "A".затем повторно запустите это во временную таблицу.
Select
F.Upc,
F.name,
F.Week_end_date as First_Available_Date,
E.Qty_Available_1
From
(
Select Distinct
D.Upc,
D.name,
Case When Min(D.Rolling_Qty_Available) Over ( PARTITION BY D.upc) < 1 then 0 else
Min(D.Rolling_Qty_Available) Over ( PARTITION BY D.upc) END as Qty_Available_1,
Case When Max(D.Look_up_Ref) Over ( PARTITION BY D.upc) = 0 then '-1000' else
Max(D.Look_up_Ref) Over ( PARTITION BY D.upc) END as Look_up_Ref_1
From
(
Select
A.Upc,
A.name,
A.Week_end_Date,
A.Rolling_Qty_Available,
CASE WHEN
C.Max_Row = A.Row_num and A.[Rolling_Qty_Available] >1 THEN 1
ELSE
CASE WHEN
Sum(A.Calc_Row_Thing) OVER (Partition by A.UPC Order by A.Row_Num DESC
ROWS BETWEEN UNBOUNDED PRECEDING
AND Current ROW
) = (C.Max_Row - A.Row_num + 1)
THEN
C.Max_Row - A.Row_num + 1
ELSE 0 END
END as Look_up_Ref
FROM (
Select
G.Upc,
G.Name,
G.Week_End_Date,
G.Row_num,
G.Calc_Row_Thing,
G.Rolling_Qty_Available
--CASE When (G.Rolling_Qty_Available -
--isnull(H.Qty_Available_1,0)) > 0 then 1 else - 0 END as
--Calc_Row_Thing,
From [dbo].[ATS_item_detail_USA_vw] as G
--Left Join [dbo].[tmp_ats_usa_qty_1] as H on G.upc = H.upc
) AS A --Need to subtract QTY 1 out of here and below
join (
SELECT
B.upc,
Max(Row_num) AS Max_Row
FROM [dbo].[ATS_item_detail_USA_vw] AS B
GROUP BY B.upc
) as C on A.upc = C.upc
) as D
GROUP BY
D.Upc,
D.name,
D.Rolling_Qty_Available,
D.Look_up_Ref
HAVING Max(D.Look_up_Ref) > 1
) as E
Left join
(
SELECT
A.Upc,
A.name,
A.Week_end_Date,
A.Rolling_Qty_Available,
CASE WHEN
C.Max_Row = A.Row_num and A.[Rolling_Qty_Available] >1 THEN 1
ELSE
CASE WHEN
Sum(A.Calc_Row_Thing) OVER (Partition by A.UPC Order by A.Row_Num DESC
ROWS BETWEEN UNBOUNDED PRECEDING
AND Current ROW
) = (C.Max_Row - A.Row_num + 1)
THEN
C.Max_Row - A.Row_num + 1
ELSE 0 END
END as Look_up_Ref
From (
Select
G.Upc,
G.Name,
G.Week_End_Date,
G.Row_num,
G.Calc_Row_Thing,
G.Rolling_Qty_Available
--CASE When (G.Rolling_Qty_Available -
--isnull(H.Qty_Available_1,0)) > 0 then 1 else - 0 END as
--Calc_Row_Thing,
From [dbo].[ATS_item_detail_USA_vw] as G
--Left Join [dbo].[tmp_ats_usa_qty_1] as H on G.upc = H.upc
) as A --subtract qty_1 out the start qty 2 calc
join (
SELECT
B.upc,
Max(Row_num) as Max_Row
FROM [dbo].[ATS_item_detail_USA_vw] as B
GROUP BY B.upc
) AS C ON A.upc = C.upc
) AS F ON E.upc = F.upc and E.Look_up_Ref_1 = F.Look_up_Ref