Question

我有一张这样的表

Employee    Response Code
-------------------------
Emp A       vml
Emp B       wrn
Emp C       ptb
Emp A       wrn
Emp B       ulm
Emp A       vml
Emp B       ulm
Emp C       vml

我需要从上表

创建这样的报告

       vml  wrn ptb ulm
------------------------
Emp A   2   1   0   0
Emp B   0   1   0   2
Emp C   1   0   1   0
Totals  3   2   1   2

报告表计算每位员工的每个代码的计数，总计算结束时每列的总和

我该怎么做？有人可以帮帮我吗？非常感谢你的时间和帮助

Answer 1

我会咬人的。似乎需要一个快速启动。

以下是两个选项：第一个是动态，它将允许将来的响应代码。第二个将说明实际的PIVOT语法

动态选项

Declare @SQL varchar(max) 
Select  @SQL = Stuff((Select Distinct ',' + QuoteName([Response Code]) From YourTable Order by 1 For XML Path('')),1,1,'') 
Select  @SQL = 'Select [Lvl],[Employee],' + @SQL + '
                From (
                        Select [Employee],[Response Code],Cnt=1,Lvl=0 from YourTable
                        Union All
                        Select ''Total'',[Response Code],count(*),1 From YourTable Group By [Response Code]
                     ) A
                Pivot (sum(Cnt) For [Response Code] in (' + @SQL + ') ) p'
Exec(@SQL);

非动态选项

Select [Lvl],[Employee],[ptb],[ulm],[vml],[wrn]
 From  (
        Select [Employee],[Response Code],Cnt=1,Lvl=0 from YourTable
        Union All
        Select 'Total',[Response Code],count(*),1 From YourTable Group By [Response Code]
        ) A
 Pivot (sum(Cnt) For [Response Code] in ([ptb],[ulm],[vml],[wrn]) ) p

两者都会返回

Employee    ptb     ulm     vml     wrn
Emp A       NULL    NULL    2       1
Emp B       NULL    2       NULL    1
Emp C       1       NULL    1       NULL
Total       1       2       3       2

编辑 - 删除NULL

注意额外的Union All

Declare @SQL varchar(max) 
Select  @SQL = Stuff((Select Distinct ',' + QuoteName([Response Code]) From YourTable Order by 1 For XML Path('')),1,1,'') 
Select  @SQL = 'Select [Lvl],[Employee],' + @SQL + '
                From (
                        Select [Employee],[Response Code],Cnt=1,Lvl=0 from YourTable
                        Union All
                        Select [Employee],[Response Code],Cnt=0,Lvl=0 from (Select Distinct [Employee] from YourTable) A Join (Select Distinct [Response Code] from YourTable) B on 1=1
                        Union All
                        Select ''Total'',[Response Code],count(*),1 From YourTable Group By [Response Code]
                     ) A
                Pivot (sum(Cnt) For [Response Code] in (' + @SQL + ') ) p'
Exec(@SQL);

Answer 2

根据您的上一条评论，您需要使用Dynamic Pivot，因为默认情况下，PIVOT运算符需要提供一个静态的列列表来进行透视。

请参阅我对类似问题的回答： How-to-convert-many-to-many-entity-relationship-to-tabular-view-in-sql

特别要注意动态枢轴部分。

如果您提到的答案太难理解，那么请搜索谷歌搜索SQL Server动态数据透视表。以下是一个示例结果：Script to create dynamic PIVOT queries in SQL Server

希望这会有所帮助。如果仍然遇到麻烦，请在评论中发布您尝试过的内容以及哪些内容无效。

透视和分组SQL Server 2014

2 个答案: