PIVOT和温度表

Question

please can you help me put this script into a temp table. i have been working on this for hours and it keeps giving me errors.

    DECLARE @PivotColumnHeaders VARCHAR(MAX)
    SELECT @PivotColumnHeaders = 
    COALESCE(@PivotColumnHeaders + ',[' + CAST(expansion as varchar(max)) + ']',
    '[' + CAST(expansio

    n as varchar(max))+ ']')

INTO #temp
FROM (Select distinct expansion from #CD4_VL2) results


DECLARE @PivotTableSQL NVARCHAR(MAX)
SET @PivotTableSQL = N'
select * from
(
select subjectID,expansion,printableValue1
from #CD4_VL2) as results


PIVOT

(MAX([printableValue1])
FOR [expansion] IN (
' + @PivotColumnHeaders + '
)
) as PivotTable

--order by Performed_Date_And_Time desc
'

Execute(@PivotTableSQL )

Answer 1

Because you've pivoted on the expansion columns, the respective values of MAX(printableValue1) will now be in columns with the names of the data in the Expansion column. Change this like so:

DECLARE @PivotColumnHeaders NVARCHAR(MAX) = 'Expansion1, Expansion2, Expansion3';

DECLARE @PivotTableSQL NVARCHAR(MAX);
SET @PivotTableSQL = 
N'select subjectID, ' + @PivotColumnHeaders 
+' from #CD4_VL2 
  PIVOT
(
  MAX([printableValue1])
  FOR [expansion] IN (' + @PivotColumnHeaders + ')) x';

Execute(@PivotTableSQL);

SqlFiddle here