没有动态 sql 的 SQL 透视

Question

我想在我的 sql 查询中使用带有动态数据透视列的数据透视，但我不想使用动态 sql 查询然后执行它。因为我的要求是将结果存储到临时表中。

有没有办法在 pivot for 子句中使用动态列而不动态创建查询？

或

如果我正在动态准备查询，有没有办法将结果存储到临时表中？

请提出一些建议。

Answer 1

这里有一个解决方案。我正在使用存储过程。主源表 DeptBudget 有各种列，例如用户、日期等，但我使用的列是 Status、HR_Budget 和 IT_Budget。我正在使用 9 种可能的状态，但可以修改更多。最好的部分是我不必知道状态的值！解决方案的关键是使用和 Identity 作为数据透视字段，然后根据需要重命名列并删除。无需动态 SQL！

-- STEP 1: Declare Column Name Variable
Declare @tnc varchar(50)

-- STEP 2: Create 2 temporay tables #StageA and #StageB.
CREATE TABLE #StageA (
ID int IDENTITY(1,1) NOT NULL,
Budget varchar(50), 
HR_Budget decimal(12,2),
IT_Budget decimal(12,2)
)
CREATE TABLE #StageB (
Budget varchar(50), 
[1] decimal(12,2),
[2] decimal(12,2),
[3] decimal(12,2),
[4] decimal(12,2),
[5] decimal(12,2),
[6] decimal(12,2),
[7] decimal(12,2),
[8] decimal(12,2),
[9] decimal(12,2)
)

-- STEP 3: Dump Aggregated data into #StageA
INsert Into #StageA (Budget, HR_Budget, IT_Budget)
Select [Status], Sum(HR_Budget), Sum(IT_Budget)
From DeptBudget
Group By [Status]


-- STEP 4: Pivot into #StageB
Insert into #StageB
    Select Budget,  SUM([1]) AS [1],SUM([2]) AS [2],SUM([3]) AS [3],SUM([4]) AS [4],SUM([5]) AS [5],SUM([6]) AS [6]
    ,SUM([7]) AS [7],SUM([8]) AS [8],SUM([9]) AS [9]
    from
    (
    Select   'IT Budget' As Budget,  ISNULL([1], 0) AS [1],ISNULL([2], 0) AS [2],ISNULL([3], 0) AS [3],ISNULL([4], 0) AS [4],ISNULL([5], 0) AS [5],ISNULL([6], 0) AS [6]
        ,ISNULL([7], 0) AS [7],ISNULL([8], 0) AS [8],ISNULL([9], 0) AS [9]
    from
        (
        Select ID, IT_Budget From #StageA 
                )
        pvt
        Pivot
        (
            Sum(IT_Budget) for [ID] in ([1],[2],[3],[4],[5],[6],[7],[8],[9])
        )   
    Pvttab   
Union
    Select   'HR Budget' As Budget,  ISNULL([1], 0) AS [1],ISNULL([2], 0) AS [2],ISNULL([3], 0) AS [3],ISNULL([4], 0) AS [4],ISNULL([5], 0) AS [5],ISNULL([6], 0) AS [6]
        ,ISNULL([7], 0) AS [7],ISNULL([8], 0) AS [8],ISNULL([9], 0) AS [9]
    from
    (
    Select ID, HR_Budget From #StageA
                )
        pvt
        Pivot
        (
            Sum(HR_Budget) for [ID] in ([1],[2],[3],[4],[5],[6],[7],[8],[9])
        )
        Pvttab   

Union
    Select   'Total Budget' As Budget,  ISNULL([1], 0) AS [1],ISNULL([2], 0) AS [2],ISNULL([3], 0) AS [3],ISNULL([4], 0) AS [4],ISNULL([5], 0) AS [5],ISNULL([6], 0) AS [6]
        ,ISNULL([7], 0) AS [7],ISNULL([8], 0) AS [8],ISNULL([9], 0) AS [9]
    from
    (
    Select ID, HR_Budget + IT_Budget AS BudgetTotal  From #StageA
    )
    pvt
    Pivot
    (
    Sum(BudgetTotal) for [ID] in ([1],[2],[3],[4],[5],[6],[7],[8],[9])
    )
    Pvttab   

) pVS
Group By Budget 

-- STEP 5: Rename The Columns and drop those not needed.
select @tnc  = Null
Select @tnc = Budget From #StageA Where ID=1
If @tnc IS Not NUll 
    Begin
        EXEC tempdb..sp_rename '#StageB.[1]', @tnc, 'COLUMN'
    End
    Else
    Begin
        ALTER TABLE #StageB
        DROP COLUMN  [1];       
    End
select @tnc  = Null
Select @tnc = Budget From #StageA Where ID=2
If @tnc IS Not NUll 
    Begin
        EXEC tempdb..sp_rename '#StageB.[2]', @tnc, 'COLUMN'
    End
    Else
    Begin
        ALTER TABLE #StageB
        DROP COLUMN  [2];       
    End

select @tnc  = Null
Select @tnc = Budget From #StageA Where ID=3
If @tnc IS Not NUll 
    Begin
        EXEC tempdb..sp_rename '#StageB.[3]', @tnc, 'COLUMN'
    End
    Else
    Begin
        ALTER TABLE #StageB
        DROP COLUMN  [3];       
    End

select @tnc  = Null
Select @tnc = Budget From #StageA Where ID=4
If @tnc IS Not NUll 
    Begin
        EXEC tempdb..sp_rename '#StageB.[4]', @tnc, 'COLUMN'
    End
    Else
    Begin
        ALTER TABLE #StageB
        DROP COLUMN  [4];       
    End

select @tnc  = Null
Select @tnc = Budget From #StageA Where ID=5
If @tnc IS Not NUll 
    Begin
        EXEC tempdb..sp_rename '#StageB.[5]', @tnc, 'COLUMN'
    End
    Else
    Begin
        ALTER TABLE #StageB
        DROP COLUMN  [5];       
    End

select @tnc  = Null
Select @tnc = Budget From #StageA Where ID=6
If @tnc IS Not NUll 
    Begin
        EXEC tempdb..sp_rename '#StageB.[6]', @tnc, 'COLUMN'
    End
    Else
    Begin
        ALTER TABLE #StageB
        DROP COLUMN  [6];       
    End

select @tnc  = Null
Select @tnc = Budget From #StageA Where ID=7
If @tnc IS Not NUll 
    Begin
        EXEC tempdb..sp_rename '#StageB.[7]', @tnc, 'COLUMN'
    End
    Else
    Begin
        ALTER TABLE #StageB
        DROP COLUMN  [7];       
    End

select @tnc  = Null
Select @tnc = Budget From #StageA Where ID=8
if @tnc IS Not NUll
    Begin
        EXEC tempdb..sp_rename '#StageB.[8]', @tnc, 'COLUMN'
    End
    Else
    Begin
        ALTER TABLE #StageB
        DROP COLUMN  [8];       
    End

select @tnc  = Null
Select @tnc = Budget From #StageA Where ID=9
If @tnc IS Not NUll 
    Begin
        EXEC tempdb..sp_rename '#StageB.[9]', @tnc, 'COLUMN'
    End
    Else
    Begin
        ALTER TABLE #StageB
        DROP COLUMN  [9];       
    End


-- Show The Data
Select * From #StageB

Answer 2

是的，您可以通过选择 ..into..statement 将其存储到 tmp 表中

谢谢