TSQL枢轴多列

我有下面的表格，但不确定是否可以旋转这个并保留所有的标签。

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 

我会承认使用枢轴不是很好，所以经过几次尝试，结果如下：

 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 

我会承认对下一步做什么感到非常困惑，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

既然你想旋转多列的数据，我会首先build议unpivoting的result ， score和grade列，所以你没有多个列，但你会有多行。

根据您的SQL Server版本，您可以使用UNPIVOT函数或CROSS APPLY。 未转换数据的语法将类似于：

 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) 

看演示与SQL小提琴 。 一旦数据已经转换，那么你可以应用PIVOTfunction：

 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; 

看演示与SQL小提琴 。 这会给你结果：

 | 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 |