具有COUNT（）和SUM（）以及TOTAL列的动态PIVOT表SQL Server 2012

Question

我正在尝试做的事情（列名是动态传递的，但是我对其进行了硬编码，因此在此问题中看起来更简单）：

我正在尝试使用PIVOT表查询数据库以求和一个字段并计算SQL Server 2012表的行 ，但是，此外，我正在尝试将总数返回到COUNT（）和SUM（）函数 。

通常，数据透视表如下所示（这比我尝试达到的要简单）：

 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，我想将总计（总计）作为一列包括在内，而不是按照本教程进行操作 ，一切都很好。

到目前为止，我所拥有的（正在运行）：

 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，就像我对COUNT（）所做的那样，我想对SUM（）进行处理并在同一查询中检索两者。

到目前为止，我为实现我的目标所做的努力：

1. 我复制了PIVOT部分，并尝试执行FULL OUTER JOIN ，但是问题是，它会将列重复到最终结果，从而产生错误（无效的列名）。 当我打印@resultado时，就是在重复。

 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. 我尝试使用UNPIVOT和PIVOT方法 ，该方法也会生成无效列的错误。

Answer 1

因此，不用说进行任何动态处理都是非常有问题的，因为您永远无法真正掌握元数据。 在任何情况下，当您有多个这样的条件聚合来使用CASE语句合并您的不同度量时，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],'

并以此方式针对您的数据集建立一个查询。

无论如何，要解决您的特定问题，如果要将两者结合使用，则必须提供唯一的列名，这意味着您需要创建@campos和@total略有不同的版本。 在这里，我刚刚完成了@campos来为您提供想法。

注意，我还必须在第二个枢轴中将hc_key更改为hc_key2，以避免重复的列名。

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)