how to do pivot on multiple columns [duplicate] - sql

Question

This question already has answers here:
SQL Server Pivot Table with multiple column aggregates
(3 answers)
Closed 3 years ago.
Hi I have sample data
Declare #table table
(Name Varchar(10),
Cnt INT,
Vol INT,
Descc VARCHAR(10))
INSERT INTO #table(Name,cnt,vol,Descc)values ('Mohan',21,8,'Fed')
INSERT INTO #table(Name,cnt,vol,Descc)values ('Mohan',1,391,'Fed:::')
Data :
Name Cnt Vol Descc
Mohan 21 8 Fed
Mohan 1 391 Fed:::
How can I get output like this
Name Cnt1 Vol1 Descc1 cnt2 vol2 Descc2
Mohan 21 8 Fed 1 391 Fed::
script I have followed :
Select [1],[2] from (
select NAme,Cnt,vol,DESCc,ROW_NUMBER()OVER(PARTITION BY ID ORDER BY (SELECT NULL))P,'P'+CAST(ROW_NUMBER()OVER(PARTITION BY ID ORDER BY (SELECT NULL))AS VARCHAR)PP from #table )T
PIVOT (MAX(ID) FOR P IN ([1],[2])) AS P
PIVOT (MAX(ID) FOR PP IN ([P1],[P2])) AS P

Answer 1

You can do conditional aggregation :
select Name, max(case when seq = 1 then Cnt end) as cnt1,
max(case when seq = 1 then Vol end) as Vol1,
max(case when seq = 1 then Descc end) as Descc1,
max(case when seq = 2 then Cnt end) as cnt2,
max(case when seq = 2 then Vol end) as Vol2,
max(case when seq = 2 then Descc end) as Descc2
from (select t.*, row_number() over (partition by name order by (select 1 )) as seq
from #table t
) t
group by Name;
Here is a db<>fiddle.

Answer 2

By Dynamic sql
IF OBJECT_ID('tempdb..#TEMP') IS NOT NULL
DROP TABLE #TEMP
DECLARE #table table
(
Name Varchar(10),
Cnt INT,
Vol INT,
Descc VARCHAR(10)
)
INSERT INTO #table(Name,cnt,vol,Descc)values ('Mohan',21,8,'Fed')
INSERT INTO #table(Name,cnt,vol,Descc)values ('Mohan',1,391,'Fed')
;WITH CTE
AS
(
SELECT
ROW_NUMBER()OVER(ORDER BY Name) AS Id,*
FROM #table i
)
SELECT ROW_NUMBER()OVER(ORDER BY (SELECT NULL)) AS Seq,
id,
Name,
Data1,
Data2
+CAST(id AS VARCHAR(10)) AS ReqCol
INTO #TEMP
FROM CTE
CROSS APPLY (VALUES ( CAST(CNT AS varchar(10)),'CNT'),
(CAST(Vol AS varchar(10)),'vol'),
(Descc,'Descc')
)AS Dt (Data1,Data2)
SET NOCOUNT ON
DECLARE #Sql nvarchar(max),
#DynamicColumn nvarchar(max),
#MaxDynamicColumn nvarchar(max)
SELECT #DynamicColumn = STUFF((SELECT ', '+QUOTENAME(CAST(ReqCol AS VARCHAR(10)))
FROM #TEMP ORDER BY Seq FOR XML PATH ('')),1,1,'')
SELECT #MaxDynamicColumn = STUFF((SELECT ', '+'MAX('+QUOTENAME(CAST(ReqCol AS VARCHAR(10)))+') AS '+QUOTENAME(CAST(ReqCol AS VARCHAR(10)))
FROM #TEMP ORDER BY Seq FOR XML PATH ('')),1,1,'')
SET #Sql='SELECT Name,'+ #MaxDynamicColumn+'
FROM
(
SELECT * FROM #TEMP
)AS src
PIVOT
(
MAX(Data1) FOR [ReqCol] IN ('+#DynamicColumn+')
) AS Pvt
GROUP BY Name '
EXEC (#Sql)
PRINT #Sql
SET NOCOUNT OFF
Result
Name CNT1 vol1 Descc1 CNT2 vol2 Descc2
---------------------------------------------------------
Mohan 21 8 Fed 1 391 Fed