具有COUNT（）和SUM（）以及TOTAL列的動態PIVOT表SQL Server 2012

Question

我正在嘗試做的事情（列名是動態傳遞的，但是我對其進行了硬編碼，因此在此問題中看起來更簡單）：

我正在嘗試使用PIVOT表查詢數據庫以求和一個字段並計算SQL Server 2012表的行 ，但是，此外，我正在嘗試將總數返回到COUNT（）和SUM（）函數 。

通常，數據透視表如下所示（這比我嘗試達到的要簡單）：

 declare @campos nvarchar (max) select @campos = coalesce(@campos + ',[' + Setor + ']', '[' + Setor + ']') from dbo.TbFinanciamentos group by Setor order by Setor declare @resultado nvarchar(max) set @resultado = 'select * from(select Setor, ''br-'' + lower(UF_FILIAL) as [hc-key] from dbo.TbFinanciamentos) a pivot( count(Setor) for Setor in(' + @campos + ') ) a' execute(@resultado) 

但是，我想將總計（總計）作為一列包括在內，而不是按照本教程進行操作 ，一切都很好。

到目前為止，我所擁有的（正在運行）：

 declare @campos nvarchar (max) select @campos = coalesce(@campos + ',[' + Setor + ']', '[' + Setor + ']') from dbo.TbFinanciamentos group by Setor order by Setor declare @total nvarchar(max) select @total = coalesce(@total + 'isnull([' + Setor + '], 0) + ', 'isnull([' + Setor + '], 0) + ') from dbo.TbFinanciamentos group by Setor order by Setor set @total = left(@total, len(@total) - 1) declare @resultado nvarchar(max) set @resultado = 'select *, '+ @total +' as [value] into #temp_total from (select Setor, ''br-'' + lower(UF_FILIAL) as [hc-key] from dbo.TbFinanciamentos) a pivot( count(Setor) for Setor in(' + @campos + ') ) b select * from #temp_total' execute(@resultado) 

但是，就像我對COUNT（）所做的那樣，我想對SUM（）進行處理並在同一查詢中檢索兩者。

到目前為止，我為實現我的目標所做的努力：

1. 我復制了PIVOT部分，並嘗試執行FULL OUTER JOIN ，但是問題是，它會將列重復到最終結果，從而產生錯誤（無效的列名）。 當我打印@resultado時，就是在重復。

 declare @campos nvarchar (max) select @campos = coalesce(@campos + ',[' + Setor + ']', '[' + Setor + ']') from dbo.TbFinanciamentos group by Setor order by Setor declare @total nvarchar(max) select @total = coalesce(@total + 'isnull([' + Setor + '], 0) + ', 'isnull([' + Setor + '], 0) + ') from dbo.TbFinanciamentos group by Setor order by Setor set @total = left(@total, len(@total) - 1) declare @resultado nvarchar(max) set @resultado = 'select *, '+ @total +' as [value] into #temp_total from ( (select Setor, ''br-'' + lower(UF_FILIAL) as [hc-key] from dbo.TbFinanciamentos pivot( count(Setor) for Setor in(' + @campos + ') ) as b ) as sth full outer join ( select cast(Valor_do_Emprestimo as float) as Valor_do_Emprestimo, Setor, ''br-'' + lower(UF_FILIAL) as [hc-key] from dbo.TbFinanciamentos pivot( count(Setor) for Setor in(' + @campos + ') ) as b ) as sth_else on sth.[hc-key] = sth_else.[hc-key] ) select * from #temp_total' execute(@resultado) 

2. 我嘗試使用UNPIVOT和PIVOT方法 ，該方法也會生成無效列的錯誤。

Answer 1

因此，不用說進行任何動態處理都是非常有問題的，因為您永遠無法真正掌握元數據。 在任何情況下，當您有多個這樣的條件聚合來使用CASE語句合並您的不同度量時，它都是可以接受的，例如

    SUM(CASE When Setor = ''' + Setor ''' then 1 else 0 end) 
as [' + Setor + '_Count], 
SUM(CASE When Setor = ''' + Setor ''' then Valor_do_Emprestimo else 0 end) 
as [' + Setor + '_Total],'

並以此方式針對您的數據集建立一個查詢。

無論如何，要解決您的特定問題，如果要將兩者結合使用，則必須提供唯一的列名，這意味着您需要創建@campos和@total略有不同的版本。 在這里，我剛剛完成了@campos來為您提供想法。

注意，我還必須在第二個樞軸中將hc_key更改為hc_key2，以避免重復的列名。

declare @campos nvarchar (max)
select @campos  = coalesce(@campos + ',[' + Setor + ']', '[' + Setor + ']')
from dbo.TbFinanciamentos
group by Setor
order by Setor

declare @campos2 nvarchar (max)
select @campos2  = coalesce(@campos2 + ',[' + Setor + '_2]', '[' + Setor + '_2]')
from dbo.TbFinanciamentos
group by Setor
order by Setor

declare @total nvarchar(max)
select @total = coalesce(@total + 'isnull([' + Setor + '], 0) + ', 'isnull([' + Setor + '], 0) + ')
from dbo.TbFinanciamentos group by Setor order by Setor
set @total = left(@total, len(@total) - 1)

declare @resultado nvarchar(max)
set @resultado =
        'select * into #temp_total from (
        select *, '+ @total +' as [value]          from
        (
             select * from (select Setor, ''br-'' + lower(UF_FILIAL) as [hc-key] from dbo.TbFinanciamentos) pvt
                 pivot(
                     count([Setor])
                     for Setor in(' + @campos + ')
                 ) as b
             ) as sth
            full outer join
            (
               select *          from (
             select * from (select cast(Valor_do_Emprestimo as float) as Valor_do_Emprestimo, Setor+''_2'' as Setor, ''br-'' + lower(UF_FILIAL) as [hc-key2] from dbo.TbFinanciamentos ) pvt
                 pivot(
                    sum([Valor_do_Emprestimo])
                     for Setor in(' + @campos2 + ')
                 ) as b
             ) c
            ) as sth_else
            on sth.[hc-key] = sth_else.[hc-key2]
         ) d

         select * from #temp_total'
        execute(@resultado)