TSQL樞軸多列

Question

我有下面的表格，但不確定是否有可能轉動它並保留所有標籤。

RATIO    RESULT SCORE GRADE 
Current Ratio  1.294 60  Good 
Gearing Ratio  0.3384 70  Good 
Performance Ratio 0.0427 50  Satisfactory 
TOTAL    NULL 180  Good 

我會承認自己不是很好的使用樞軸，所以導致這個輸出經過幾次嘗試：

SELECT 'RESULT' AS 'Ratio' 
    ,[Current Ratio] AS 'Current Ratio' 
    ,[Gearing Ratio] AS 'Gearing Ratio' 
    ,[Performance Ratio] AS 'Performance Ratio' 
    ,[TOTAL] AS 'TOTAL' 
FROM 
(
    SELECT RATIO, RESULT 
    FROM GRAND_TOTALS 
) AS SREC 
PIVOT 
(
    MAX(RESULT) 
    FOR RATIO IN ([Current Ratio],[Gearing Ratio], [Performance Ratio], [TOTAL]) 
) AS PVT 

這給出結果：

Ratio Current Ratio Gearing Ratio Performance Ratio 
Result 1.294  0.3384  0.0427 

我會承認感到非常難以接受下一步做什麼以產生我需要的結果：

Ratio Current Ratio Gearing Ratio Performance Ratio TOTAL 
Result  1.294  0.3384    0.0427   NULL 
Score  60    70    50    180 
Grade  Good   Good   Satisfactory   Good 

Answer 1

由於您要旋轉多列數據，因此我會首先建議您將不透明的列設置爲result,score和grade，以便您沒有多列，但是將有多行。

根據您的SQL Server版本，您可以使用UNPIVOT函數或CROSS APPLY。未反轉數據的語法將類似於：

select ratio, col, value 
from GRAND_TOTALS 
cross apply 
(
    select 'result', cast(result as varchar(10)) union all 
    select 'score', cast(score as varchar(10)) union all 
    select 'grade', grade 
) c(col, value) 

請參閱SQL Fiddle with Demo。一旦數據已經unpivot操作，那麼您可以將旋轉功能：

select ratio = col, 
    [current ratio], [gearing ratio], [performance ratio], total 
from 
(
    select ratio, col, value 
    from GRAND_TOTALS 
    cross apply 
    (
    select 'result', cast(result as varchar(10)) union all 
    select 'score', cast(score as varchar(10)) union all 
    select 'grade', grade 
) c(col, value) 
) d 
pivot 
(
    max(value) 
    for ratio in ([current ratio], [gearing ratio], [performance ratio], total) 
) piv; 

見SQL Fiddle with Demo。這會給你結果：

| RATIO | CURRENT RATIO | GEARING RATIO | PERFORMANCE RATIO |  TOTAL | 
|--------|---------------|---------------|-------------------|-----------| 
| grade |   Good |   Good |  Satisfactory |  Good | 
| result |  1.29400 |  0.33840 |   0.04270 | (null) | 
| score |  60.00000 |  70.00000 |   50.00000 | 180.00000 |