TSQL PIVOT MULTIPLE COLUMNS

Question

我有下表，但不确定是否可以将其转动并保留所有标签。

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

我承认在使用枢轴方面不是很好，所以经过多次尝试后产生了这个输出：

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

这给出了结果：

Ratio    Current Ratio   Gearing Ratio   Performance Ratio
Result   1.294           0.3384          0.0427

我承认我对接下来该做什么感到非常难过，以产生我需要的结果：

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

由于您想要转移多列数据，我建议首先对result，score和grade列进行取消隐藏，这样您就没有多列，但是您会有多个列行。

根据您的SQL Server版本，您可以使用UNPIVOT函数或CROSS APPLY。取消数据取消的语法类似于：

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)

见SQL Fiddle with Demo。一旦数据被取消，您就可以应用PIVOT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;

见SQL Fiddle with Demo。这将给你结果：

|  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 |