Column-values to rows-header without summarzie - sql-server

Question

I have this simple single table:
Group Name
------------------------------
Group A Marco
Group B Sven
Group A Adrian
Group B Tina
Group B Steffi
Group C Jil
Group C Bastian
and want to rotate is this way. For every value in column Group one new column:
Group A Group B Group C
------------------------------
Adrian Steffi Bastian
Marco Sven Jil
Tina
Column "Group A", "Group B" and "Group C" are alphabetically sorted.
I tried it by "case when end" but the result was this:
Group A Group B Group C
------------------------------
Marco null null
Adrian null null
null Steffi null
null Sven null
null Tina null
null null Jil
null null Bastian
And it isn't sorted, either.
How can I achieve this? I need your help.

Answer 1

the static solution here : (but be carefully, in CTE a must be group having max count of names :))
(if you want sometheng more dynamically, write...)
;WITH CTE AS (SELECT ROW_NUMBER() OVER (partition by [Group] ORDER BY [Group]) AS RN,[Group], Name
FROM YourTable)
SELECT x.Name AS GroupA, a.Name AS GroupB, z.Name AS GroupC
FROM CTE a
OUTER APPLY(SELECT Name FROM CTE b WHERE a.RN = b.RN AND b.[Group] = 'Group A') x
OUTER APPLY(SELECT Name FROM CTE c WHERE a.RN = c.RN AND c.[Group] = 'Group C') z
WHERE a.[Group] = 'Group B'
Okay you can also use this one : edited by your request( but its only for 3 groups...)
DECLARE #param_group1 varchar(50),
#param_group2 varchar(50),
#param_group3 varchar(50)
SET #param_group1 =
(SELECT TOP 1 [Group]
FROM YourTable
GROUP BY [Group]
ORDER BY COUNT([Group]) DESC)
SET #param_group2 =
(SELECT TOP 1 [Group]
FROM YourTable
WHERE [Group] NOT IN (#param_group1)
GROUP BY [Group]
ORDER BY COUNT([Group]) DESC)
SET #param_group3 =
(SELECT TOP 1 [Group]
FROM YourTable
WHERE [Group] NOT IN (#param_group1, #param_group2)
GROUP BY [Group]
ORDER BY COUNT([Group]) DESC)
DECLARE #cmd VARCHAR(MAX)
SET #cmd = '
WITH CTE AS (SELECT ROW_NUMBER() OVER (partition by [Group] ORDER BY [Group]) AS RN,[Group], Name
FROM YourTable)
SELECT x.Name AS ['+#param_group1+'], a.Name AS ['+#param_group2+'], z.Name AS ['+#param_group3+']
into ##tmp1
FROM CTE a
OUTER APPLY(SELECT Name FROM CTE b WHERE a.RN = b.RN AND b.[Group] = '''+#param_group2+''') x
OUTER APPLY(SELECT Name FROM CTE c WHERE a.RN = c.RN AND c.[Group] = '''+#param_group3+''') z
WHERE a.[Group] = '''+#param_group1+''''
IF OBJECT_ID('tempdb..##tmp1') IS NOT NULL DROP TABLE ##tmp1
EXEC (#cmd)
SELECT [Group A],[Group B],[Group C]
FROM ##tmp1