Question

需要帮助。

我有这个数据表以供说明。（还有许多其他行的数据与不同的客户。请在答案中考虑这一点）

RowID   Customer     Category     Date       Figure1
  1     Cust1        Week 1       Jun-11     10
  2     Cust1        Week 2       Jun-11     20
  3     Cust1        Week 3       Jun-11     30
  4     Cust1        Week 4       Jun-11     40
  5     Cust1        Actual       Jun-11     200
  6     Cust1        Forecast     Jun-11     100
  7     Cust2        Forecast     Jun-11     100

我希望它只显示类别Actual（第5行），包括透视类别中的RowID，如下所示

这应该是输出。

RowID   Customer Date     Week1  Week2  Week3   Week4   Actual  Forecast
   5    Cust1    Jun-11   10     20     30      40      200     100

任何帮助都将不胜感激。

提前致谢。

尝试过Pivot，但它给了我这不是我想要的。

RowID   Customer Date     Week1  Week2  Week3   Week4   Actual  Forecast
   1    Cust1    Jun-11   10     null   null    null    null    null
   2    Cust1    Jun-11   null   20     null    null    null    null
   3    Cust1    Jun-11   null   null   30      null    null    null
   4    Cust1    Jun-11   null   null   null    40      null    null
   5    Cust1    Jun-11   null   null   null    null    200     null
   6    Cust1    Jun-11   null   null   null    null    null    100

Answer 1

PIVOT没问题，但之后需要GROUP BY和SUM。

或者，你可以在所有不同的代码标准上自我加入，但它可以比在一个地方拥有值列表一样可维护性稍差，就像你可以使用PIVOT一样。

Answer 2

你可以这样做：

    SELECT
        RowID,
        Customer,
        Date,
        (SELECT Figure1 FROM sotest WHERE Customer = 'Cust1' AND Date = 'Jun-11' AND Category = 'Week 1') AS Week1,
        (SELECT Figure1 FROM sotest WHERE Customer = 'Cust1' AND Date = 'Jun-11' AND Category = 'Week 2') AS Week2,
        (SELECT Figure1 FROM sotest WHERE Customer = 'Cust1' AND Date = 'Jun-11' AND Category = 'Week 3') AS Week3,
        (SELECT Figure1 FROM sotest WHERE Customer = 'Cust1' AND Date = 'Jun-11' AND Category = 'Week 4') AS Week4,
        (SELECT Figure1 FROM sotest WHERE Customer = 'Cust1' AND Date = 'Jun-11' AND Category = 'Actual') AS Actual,
        (SELECT Figure1 FROM sotest WHERE Customer = 'Cust1' AND Date = 'Jun-11' AND Category = 'Forecast') AS Forecast

    FROM
        sotest

    WHERE
        Customer = 'Cust1'
        AND Date = 'Jun-11'
        AND Category = 'Actual'

在存储过程中包含起来应该相当容易，您可以在其中传递CustomerID和Date参数。

Answer 3

根据两个参数（@MyCustomer＆amp; @MyDate）尝试此解决方案：

DECLARE @MyCustomer VARCHAR(10) = 'Cust1'
    ,@MyDate VARCHAR(10) = 'Jun-11';

SELECT pvt.*
FROM
(
SELECT  t.Customer, t.Date, t.Category, t.Figure1
FROM    MyTable t
WHERE   t.Customer = @MyCustomer AND t.[Date] = @MyDaye
) src
PIVOT ( SUM(src.Figure1) FOR src.Category IN ([Week 1], [Week 2], [Week 3], [Week 4], [Actual], [Forecast]) ) pvt

基本思路是在src派生表中仅过滤您需要进行数据透视的那些行和列，无论是更多还是更少。

如何使用SQL查询获取此输出

3 个答案: