真正簡單的PIVOT示例MS SQL 2014

Question

我可以找到的關於數據透視表的所有示例都涉及聚合，並且看起來太複雜以至於無法實現我正在嘗試執行的操作，這看起來應該非常簡單：將現有表與固定數量的行，並將數據呈現在列中而不是行格式。

下面是一些神話般的數據：

DECLARE @HSData TABLE (

     School   NVARCHAR(20) 
    , Sophomores  INTEGER 
    , Juniors   INTEGER 
    , Seniors   INTEGER 
    , Total    INTEGER 
    ) 

INSERT INTO @HSData VALUES 
     ('Armstrong HS',397,337,318,0) 
    , ('Buchanan HS',383,325,308,0) 
    , ('Carlsbad HS',338,321,285,0) 

UPDATE @HSData 
    SET Total = Sophomores + Juniors + Seniors 

SELECT * FROM @HSData 

結果如下：

我要的是數據，看起來像這樣：

我可以實現這個b y使用此代碼手動將數據插入到變量中：

DECLARE 
      @AName   NVARCHAR(20) 
     , @BName   NVARCHAR(20) 
     , @CName   NVARCHAR(20) 
     , @A10    INTEGER 
     , @A11    INTEGER 
     , @A12    INTEGER 
     , @B10    INTEGER 
     , @B11    INTEGER 
     , @B12    INTEGER 
     , @C10    INTEGER 
     , @C11    INTEGER 
     , @C12    INTEGER 

SET @AName = (SELECT School FROM (SELECT School, ROW_NUMBER() OVER (ORDER BY School) RN FROM @HSData) SR WHERE RN = 1) 
SET @BName = (SELECT School FROM (SELECT School, ROW_NUMBER() OVER (ORDER BY School) RN FROM @HSData) SR WHERE RN = 2) 
SET @CName = (SELECT School FROM (SELECT School, ROW_NUMBER() OVER (ORDER BY School) RN FROM @HSData) SR WHERE RN = 3) 
SET @A10 = (SELECT Sophomores FROM @HSData WHERE School = @AName) 
SET @B10 = (SELECT Sophomores FROM @HSData WHERE School = @BName) 
SET @C10 = (SELECT Sophomores FROM @HSData WHERE School = @CName) 
SET @A11 = (SELECT Juniors FROM @HSData WHERE School = @AName) 
SET @B11 = (SELECT Juniors FROM @HSData WHERE School = @BName) 
SET @C11 = (SELECT Juniors FROM @HSData WHERE School = @CName) 
SET @A12 = (SELECT Seniors FROM @HSData WHERE School = @AName) 
SET @B12 = (SELECT Seniors FROM @HSData WHERE School = @BName) 
SET @C12 = (SELECT Seniors FROM @HSData WHERE School = @CName) 

    DECLARE @HSData2 TABLE (

      Class     NVARCHAR(20) 
     , "Armstrong HS"  INTEGER 
     , "Buchanan HS"   INTEGER 
     , "Carlsbad HS"   INTEGER 
     ) 

INSERT INTO @HSData2 VALUES 
      ('Sophomores',@A10,@B10,@C10) 
     , ('Juniors', @A11,@B11,@C11) 
     , ('Seniors', @A12,@B12,@C12) 
     , ('Total',  @A10+@A11+@A12,@B10+@B11+@B12,@C10+@C11+@C12) 

SELECT * FROM @HSData2 

但似乎應該有更好的方法。

理想情況下，我可以將這一切歸入SSRS報告中，然後不用擔心。但它仍然讓我感到有點奇怪，我找不到任何簡單的代碼。

Answer 1

重新旋轉數據，然後旋轉。

SELECT * 
FROM @HSData 
UNPIVOT (
    Students 
    FOR Class IN (Sophomores, Juniors, Seniors, Total) 
) up 
PIVOT (
    SUM(Students) 
    FOR School IN ([Armstrong HS], [Buchanan HS], [Carlsbad HS]) 
) p 
ORDER BY CASE Class WHEN 'Sophomores' THEN 1 
        WHEN 'Juniors' THEN 2 
        WHEN 'Seniors' THEN 3 
        WHEN 'Total' THEN 4 END 

Answer 2

，我認爲這將是UNPIVOT數據更容易，讓MATRIX在SSRS擔心把它重新走到一起就像你想要的。

SELECT U.SCHOOL, U.CLASS, U.TOTALS 
FROM TABLE1 S 
UNPIVOT 
(
    TOTALS 
    FOR CLASS IN (SOPHMORES, JUNIORS, SENIORS) 
) U; 

對於矩陣，有行集團通過類和列小組通過學校。

你也可以將通過學校並使用相同的數據列集團通過類有行集團另一個矩陣。