Question

我的企业一直在尝试在SAP企业中开发一个SQL查询，该查询将显示我们所有项目的“可承诺量”。这个想法是针对某个日期范围（在我们的情况下为90天）中的每一天，采取初始库存位置，减去订单，添加进货库存然后达到当天的最终库存位置。然后在第二天进行计算，依此类推。我们希望每个项目在该日期范围内的最低最终库存排名。

我们已经有一个查询，但问题是我不知道如何更新初始库存位置，因此每天的起始位置保持不变。

declare @start DATE = GETDATE()
declare @end DATE = (GETDATE()+90)

;with DAYS (date)
AS
(
    SELECT 
    @start
    UNION ALL
    SELECT 
    DATEADD(dd,1,date)
    FROM DAYS
    WHERE DATEADD(dd,1,date)<=@end
)

(
    SELECT
    T100.*,
    T0.[ItemCode], 
    T0.[ItemName],
    (
        T1.[OnHand] - 
        (
            SELECT
                ISNULL(SUM(T6.[OpenQty]),0)
                FROM ORDR T5  
            INNER JOIN RDR1 T6 
            ON T5.[DocEntry] = T6.[DocEntry]
                WHERE 
                T0.[ItemCode] = T6.[ItemCode]
                AND T5.[DocStatus]  = 'O'
                AND T6.[LineStatus] = 'O'
                AND T5.[CANCELED] = 'N'            
                AND T5.DocDueDate = T100.date 
        ) +
        (
            SELECT
                ISNULL(SUM(T8.[Quantity]),0)
                FROM OPOR T7 
            INNER JOIN POR1 T8 
            ON T7.[DocEntry] = T8.[DocEntry]
                WHERE 
                T0.[ItemCode] = T8.[ItemCode]
                AND T7.[DocStatus]  = 'O'
                AND T8.[LineStatus] = 'O'
                AND T7.[CANCELED] = 'N' 
                AND T7.DocDueDate = T100.date 
        )
    ) AS 'ATP Qty'

    INTO #temp
    FROM DAYS T100,
    OITM T0 
    INNER JOIN OITW T1 
    ON T0.[ItemCode] = T1.[ItemCode] 

    WHERE 
    T1.[WhsCode] = '01' 
)
option (maxrecursion 365)

SELECT 
t.[ItemCode] AS [Item Number], 
t.[ItemName], 
MIN(t.[ATP Qty]) AS [ATP Qty]

FROM #temp t

GROUP BY t.ItemCode, t.[ItemName]
ORDER BY t.ItemCode

DROP TABLE #temp

正如您在上面所看到的，计算采用的是T1。[每日销售量]-库存支出+每天的库存支出。 T1。[Onhand]应该是一个变量，然后每天这样更新（不幸的是，我比SQL更习惯C）：

@inventory1 = T1.[OnHand]
@inventory2 = 0
Day 1: 
@inventory2 = @inventory1-outs+ins
@inventory1 = @inventory2
Day 2:
@inventory2=@inventory1-outs+ins
@inventory1 = @inventory2
...

任何帮助将不胜感激。

用于SAP Business One的SQL动态更新可用于承诺查询的变量

0 个答案: