SQL 서버에서 한 행의 데이터를 열로 변환하십시오.

Question

하나의 데이터 행만 출력하는 쿼리가 있습니다. 해당 행을 열로 변환하고 열을 행으로 변환하려고합니다.

내 원래 쿼리 당신이 그렇게 할 이유가

-------------------------- 
FieldName  FieldValue 
-------------------------- 
ID   1 
Name   Nisha 
Description Some Desc 

Answer 1

declare @colNum int, @i int = 1, @a nvarchar(4000) 
select @colNum=count(COLUMN_NAME) from INFORMATION_SCHEMA.COLUMNS 
      WHERE TABLE_NAME = 'YourTable' 

set @a = ' 
      declare @tempTable table 
      (
       slno  int 
       ,field  nvarchar(100) 
       ,value  nvarchar(100) 
      ) 

      insert into @tempTable (slno,field) 
      select ROW_NUMBER() over (order by ordinal_position asc),COLUMN_NAME 

      FROM INFORMATION_SCHEMA.COLUMNS 
      WHERE TABLE_NAME = ''YourTable'' 

      declare @p nvarchar(100) 
     ' 



declare @colname nvarchar(100) 

while @i<=@colNum 
begin 
    select @colname =a.COLUMN_NAME from (select COLUMN_NAME,ORDINAL_POSITION 

               FROM INFORMATION_SCHEMA.COLUMNS 
               WHERE TABLE_NAME = 'YourTable' 
             )as a 
             where a.ORDINAL_POSITION = @i 
    set @a = @a + ' 
          select @p='+@colname+' from YourTable 

         update @tempTable set 
         value = @p 
         where slno = '+CONVERT(nvarchar(5), @i) 
        +' 


        ' 


    set @i=@i+1 
end 



set @a = @a + ' select * from @tempTable' 

declare @tempTable table 
      (
       slno  int 
       ,field  nvarchar(100) 
       ,value  nvarchar(100) 
      ) 

insert into @tempTable exec (@a) 

select * from YourTable 

select * from @tempTable