带计数和求和的SQL Server数据透视表 [英] SQL Server Pivot Table with Counts and Sums

问题描述

我正在尝试使一个SQL Server Pivot表能够工作，该表允许我进行计数，然后求和一些列(总计6列).数据透视表的目的是汇总任何数量的生产站点的在线问卷调查结果.有6个问题，可以有3个结果值-目标，操作和失败.我想做的是计算每个问题的目标，操作和失败的数量，然后对每个问题求和.因此，例如，生产站点A可能有2个目标，2个操作和2个失败.

I am trying to get an SQL Server Pivot table to work that allows me to count and then sum a number of columns (6 in total). The purpose of the pivot table is to aggregate online questionnaire results for any number of production sites. There are 6 questions which can have 3 result values - Target, Action and Fail. What I am trying to do is count up the number of Target, Action and Fail for each question, and to then sum this up for each. So, for example, Production Site A could have 2 Target, 2 Action and 2 Fail.

我的理解是SQL Server Pivot表可以提供此信息，然后可以在ASP.Net ReportViewer中显示该信息.下面是我的代码，但是它不起作用，并且可以在一些专家帮助下完成:

My understanding is that the SQL Server Pivot table could deliver this information, which can then be display in ASP.Net ReportViewer. Below is my code, but it is not working, and could do with some expert help:

     SELECT PRODUCTION_Site,
     [Target],
     [Action],
     [Fail]
     FROM
     (SELECT Production_Site,
             SUM(Coding),
             SUM(Measurable),
             SUM(Appearance),
             SUM(Aroma),
             SUM(Flavour),
             SUM(Texture)
               FROM t_Pqe_Grocery
               GROUP BY Production_Site) AS T
          PIVOT
         (
           COUNT(Coding) FOR Grocery_Packaging_And_Coding IN ([Target],[Action],[Fail])
           COUNT(Measurable) FOR Grocery_Measurable IN ([Target],[Action],[Fail])
           COUNT(Appearance) FOR Grocery_Appearance IN ([Target],[Action],[Fail])
           COUNT(Aroma) FOR Grocery_Aroma IN ([Target],[Action],[Fail])
           COUNT(Flavour) FOR Grocery_Flavour IN ([Target],[Action],[Fail])
           COUNT(Texture) FOR Grocery_Texture IN ([Target],[Action],[Fail])) AS P

有没有解决的办法，还是数据透视表不是解决方案?

Is there a way round this, or is Pivot table not the solution?

表是

Production_Site,
Grocery_Packaging_And_Coding,
Grocery_Measurable,
Grocery_Appearance,
Grocery_Aroma,
Grocery_Flavour,
Grocery_Texture

表中的数据如下:

Site A, Target, Action, Fail, Target, Target, Target
Site B, Target, Action, Fail, Target, Target, Target
Site C, Target, Target, Target, Target, Target, Target
Site A, Target, Target, Target, Target, Target, Target

我正在寻找的结果是

Production_Site | Target | Action | Fail
Site A              10       1       1
Site B               4       1       1
Site C               6       0       0

推荐答案

执行此查询更简单的方法是同时应用UNPIVOT和PIVOT函数:

A much easier way to perform this query would be to apply both the UNPIVOT and then the PIVOT functions:

select *
from
(
  select Production_Site, value 
  from t_Pqe_Grocery
  unpivot
  (
    value
    for col in (Grocery_Packaging_And_Coding, Grocery_Measurable,
                Grocery_Appearance, Grocery_Aroma, 
                Grocery_Flavour, Grocery_Texture)
  ) unp
) src
pivot
(
  count(value)
  for value in ([Target], [Action], [Fail])
) piv

请参见带有演示的SQL小提琴

UNPIVOT获取您的列列表并将其转换为多行，这使计数变得更加容易:

The UNPIVOT takes your column list and transform it into multiple rows which makes it much easier to count:

select Production_Site, value 
from t_Pqe_Grocery
unpivot
(
  value
  for col in (Grocery_Packaging_And_Coding, Grocery_Measurable,
              Grocery_Appearance, Grocery_Aroma, 
              Grocery_Flavour, Grocery_Texture)
) unp

取消结果:

| PRODUCTION_SITE |  VALUE |
----------------------------
|          Site A | Target |
|          Site A | Action |
|          Site A |   Fail |
|          Site A | Target |
|          Site A | Target |
|          Site A | Target |
|          Site B | Target |
|          Site B | Action |
|          Site B |   Fail |
|          Site B | Target |
|          Site B | Target |
|          Site B | Target |
|          Site C | Target |
|          Site C | Target |
|          Site C | Target |
|          Site C | Target |
|          Site C | Target |
|          Site C | Target |
|          Site A | Target |
|          Site A | Target |
|          Site A | Target |
|          Site A | Target |
|          Site A | Target |
|          Site A | Target |

然后将PIVOT应用于此，将为每个PRODUCTION_SITE获得所需的计数.添加PIVOT后的结果是:

Then applying the PIVOT to this will get the count that you want for each of the PRODUCTION_SITEs. After adding the PIVOT the result is:

| PRODUCTION_SITE | TARGET | ACTION | FAIL |
--------------------------------------------
|          Site A |     10 |      1 |    1 |
|          Site B |      4 |      1 |    1 |
|          Site C |      6 |      0 |    0 |

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