SQLサーバーでのFIFOクエリ

Question

とc#の在庫管理アプリケーションを構築しています。テーブルからFIFOというクエリを作成したいと思います。

私は同じ製品を変動率で購入しました。その後、私はそれらのいくつかを売った。私はBatchDateの列に従って「先入れ先出し」に基づいて照会します。だから私はPurchasePriceで在庫商品を入手したいと思っています。 `

CREATE TABLE InventoryLedgers 
(

    BatchNo nvarchar(30), 
    BatchDate datetime, 
    ProductId int, 
    StockIn decimal(18, 2), 
    StockOut decimal(18, 2), 
    PurchasePrice decimal(18, 2), 
    SalesPrice decimal(18, 2) 
); 


INSERT INTO InventoryLedgers (BatchNo,BatchDate ,ProductId ,StockIn ,StockOut ,PurchasePrice ,SalesPrice) 
VALUES ('JRV171000001', '10/20/2017', 1, 2, 0, 35000, 0); 

INSERT INTO InventoryLedgers (BatchNo,BatchDate ,ProductId ,StockIn ,StockOut ,PurchasePrice ,SalesPrice) 
VALUES ('JRV171000002', '10/21/2017', 1, 3, 0, 36000, 0); 

INSERT INTO InventoryLedgers (BatchNo,BatchDate ,ProductId ,StockIn ,StockOut ,PurchasePrice ,SalesPrice) 
VALUES ('JRV171000003', '10/22/2017', 1, 5, 0, 37000, 0); 

INSERT INTO InventoryLedgers (BatchNo,BatchDate ,ProductId ,StockIn ,StockOut ,PurchasePrice ,SalesPrice) 
VALUES ('JRV171000004', '10/20/2017', 2, 3, 0, 40000, 0); 

INSERT INTO InventoryLedgers (BatchNo,BatchDate ,ProductId ,StockIn ,StockOut ,PurchasePrice ,SalesPrice) 
VALUES ('JRV171000005', '10/21/2017', 2, 3, 0, 42000, 0); 

INSERT INTO InventoryLedgers (BatchNo,BatchDate ,ProductId ,StockIn ,StockOut ,PurchasePrice ,SalesPrice) 
VALUES ('JRV171000006', '10/22/2017', 2, 5, 0, 46000, 0); 


INSERT INTO InventoryLedgers (BatchNo,BatchDate ,ProductId ,StockIn ,StockOut ,PurchasePrice ,SalesPrice) 
VALUES ('JRV171000007', '10/22/2017', 1, 0, 3, 0, 45000); 

INSERT INTO InventoryLedgers (BatchNo,BatchDate ,ProductId ,StockIn ,StockOut ,PurchasePrice ,SalesPrice) 
VALUES ('JRV171000008', '10/22/2017', 2, 0, 4, 0, 50000); 

Answer 1

私はPROCEDUREを作成しました。後で、プロシージャの反対側のデータを別のテーブルに結合するプロシージャのデータ。

WITH OrderedIn as ( select ProductId Item, Date = BatchDate , Qty=StockIn, Price = PurchasePrice, ROW_NUMBER() OVER (PARTITION BY ProductId ORDER BY ProductId, [BatchDate]) as rn from InventoryLedgers where StockIn > 0 ), RunningTotals as ( select Item, Qty, Price, CAST(Qty AS int) AS Total, CAST(0 AS int) as PrevTotal, rn from OrderedIn where rn = 1 union all select rt.Item, oi.Qty, oi.Price, CAST(rt.Total AS int) + CAST(oi.Qty AS int), CAST(rt.Total AS int) Total, oi.rn from RunningTotals rt inner join OrderedIn oi on rt.Item = oi.Item and rt.rn = oi.rn - 1 ), TotalOut as ( select Item=ProductId, SUM(StockOut) as Qty from InventoryLedgers where StockOut>=0 group by ProductId ) select rt.Item, SUM(CASE WHEN CAST(PrevTotal AS int) > out.Qty THEN rt.Qty ELSE CAST(rt.Total AS int) - out.Qty END * Price) price from RunningTotals rt inner join TotalOut out on rt.Item = out.Item where CAST(rt.Total AS int) > CAST(out.Qty AS int) group by rt.Item

Answer 2

stockinや在庫切れのためsum(...) over(...)によって作成された "実行中の合計を" 使用してはstockinが在庫切れFIFOロジックを使用して超えた場合に決定することができます。

は、ここに私のテーブルです。まず

WITH cte AS (
     SELECT 
      * 
     , sum(stockin) over(partition by ProductId order by BatchDate ASC) sum_in 
     , sum(stockout) over(partition by ProductId order by BatchDate ASC) sum_out 
     FROM InventoryLedgers 
    ) 
SELECT 
     i.id, i.BatchNo, i.BatchDate ,i.ProductId ,i.StockIn 
    , i.PurchasePrice, i.sum_in - o.sum_out as tot_avail_stock 
FROM cte i 
inner join (
      select * 
      from cte 
      where stockout > 0 
     ) o on i.ProductId = o.ProductId and i.sum_in > o.sum_out 
where i.stockin > 0 
order by productid, batchdate 
GO 

 
id | BatchNo  | BatchDate | ProductId | StockIn | PurchasePrice | tot_avail_stock 
-: | :----------- | :--------- | --------: | :------ | :------------ | :-------------- 
2 | JRV171000002 | 21/10/2017 |   1 | 3.00 | 36000.00  | 2.00   
3 | JRV171000003 | 22/10/2017 |   1 | 5.00 | 37000.00  | 7.00   
5 | JRV171000005 | 21/10/2017 |   2 | 3.00 | 42000.00  | 2.00   
6 | JRV171000006 | 22/10/2017 |   2 | 5.00 | 46000.00  | 7.00   

dbfiddle here