Rextester

Question

我有两个主键和外键表（MaterialId）

材料表（多种材料）

MaterialId   MaterialName   OpeningStock
1            Pen            100
2            Pencil         50

材料库存（多种材料进入）

MaterialId   PurchaseQty    SalesQty    Date
1            500            0           2016-12-15
1            0              0           2016-12-16
1            300            0           2016-12-17
1            0              400         2016-12-18
1            0              0           2016-12-19
1            0              0           2016-12-20
1            0              400         2016-12-21
1            200            100         2016-12-22

现在当我通过@FromDate和@Todate时我想输出如下：

Date         MaterialName   OpeningStock   PurchaseQty   SalesQty    ClosingStock
2016-12-15   Pen            100            500            0           600
2016-12-16   Pen            600            0              0           600
2016-12-17   Pen            600            300            0           900
2016-12-18   Pen            900            0              400         500
2016-12-19   Pen            500            0              0           500
2016-12-20   Pen            500            0              0           500
2016-12-21   Pen            500            0              400         100
2016-12-22   Pen            100            200            100         200

注意：
1.如果数据库表出现问题，请指导我如何处理这种情况。 2.还可以从两个表中找到当前日期库存

Answer 1

您正在寻找各种数量值的滚动总和。一种方法是使用相关子查询：

SELECT
    t1.Date,
    mt.MaterialName,
    (SELECT OpeningStock FROM [Material Table] WHERE MaterialId = t1.MaterialId) +
    COALESCE((SELECT SUM(t2.PurchaseQty - t2.SalesQty) FROM [Material Stock] t2
     WHERE t2.Date < t1.Date AND t1.MaterialId = t2.MaterialId), 0) AS OpeningStock,
    t1.PurchaseQty,
    t1.SalesQty,
    (SELECT OpeningStock FROM [Material Table] WHERE MaterialId = t1.MaterialId) +
COALESCE((SELECT SUM(t2.PurchaseQty - t2.SalesQty) FROM [Material Stock] t2
     WHERE t2.Date <= t1.Date AND t1.MaterialId = t2.MaterialId), 0) AS ClosingStock
FROM [Material Stock] t1
INNER JOIN [Material Table] mt
    ON t1.MaterialId = mt.MaterialId
ORDER BY
    mt.MaterialName,
    t1.Date;

请注意，将开仓库存值存储在物料库存表的单独表格中是不好的表格设计。这意味着上面的查询将不返回铅笔记录。更好的方法是将种子记录插入到每种材料的材料库存中，其数量为初始库存。

<强>输出：

在这里演示：

Rextester

Answer 2

只需按以下步骤操作：

SELECT S.DATE, M.MaterialName, M.OpeningStock, S.PurchaseQty, S.SalesQty, SUM((M.OpeningStock+S.PurchaseQty)-S.SalesQty)ClosingStock FROM #TABLE
(
      SELECT * FROM MaterialTABLE
) M

INNER JOIN Material S ON S.MaterialId = M.MaterialId where s.date between @FromDate and @Todate

开仓股票，按日期sql查询关闭股票

2 个答案:

Rextester