我怎樣才能返回列名sql服務器中的數據透視表？

Question

我檢查發佈的問題，根據結果不基於列名稱 做的關鍵點，你可以請諮詢什麼應該是SQL腳本檢索這個結果？

實際結果

預期結果

三江源提前。

Answer 1

你可以用union all做到這一點：

select 'name' as which, 
     max(case when id = 1 then name end) as [1], 
     max(case when id = 2 then name end) as [2], 
     max(case when id = 3 then name end) as [3], 
     max(case when id = 4 then name end) as [4] 
from t 
union all 
select 'state' as which, 
     max(case when id = 1 then state end) as [1], 
     max(case when id = 2 then state end) as [2], 
     max(case when id = 3 then state end) as [3], 
     max(case when id = 4 then state end) as [4] 
from t; 

Answer 2

然後，您可以使用動態SQL查詢。

查詢

declare @sql as varchar(max); 

select @sql = 'select '+ char(39) + 'name' + char(39) + ' as [id],' + 
stuff((select distinct ', max(case when [id] = ' 
    + cast([id] as varchar(100)) + ' then [name] end) 
     as [' + cast([id] as varchar(100)) + ']' 
    from #t 
    for xml path('') 
), 1, 2, '') + 
' from #t union all ' + 
'select '+ char(39) + 'state' + char(39) + ' as [id],' + 
stuff((select distinct ', max(case when [id] = ' 
    + cast([id] as varchar(100)) + ' then [state] end) 
     as [' + cast([id] as varchar(100)) + ']' 
    from #t 
    for xml path('') 
), 1, 2, '') + 
' from #t'; 

exec(@sql); 

#t Chanage根據你的。