How to convert rows into column in sql - sql

Question

I have a table,
and need to convert it as
I have tried pivot but can't figure out please help me out .

Answer 1

Pivot does not work with more than one column out-of-the-box There are several approaches to solve this:
Use this table variable for all tests and please state your sample data always copy'n'pasteable. Best was a MCVE (Minimal Complete Verifyable Example) where you set up some code like mine here.
DECLARE #tbl TABLE(ID INT, Code INT,EmployeeName VARCHAR(100),ExamName VARCHAR(100),Board VARCHAR(100),Result VARCHAR(100));
INSERT INTO #tbl VALUES
(11537,12984,'TheName','SSC','b04','1st')
,(11537,12984,'TheName','HSC','b04','2nd')
,(11537,12984,'TheName','BA(H)','u33','2nd');
This is code to first concatenate your data to one single column. This allows PIVOT:
SELECT p.*
FROM
(
SELECT tbl.ID
,tbl.Code
,tbl.EmployeeName
,'Exam_' + CAST(ROW_NUMBER() OVER(PARTITION BY tbl.ID ORDER BY tbl.Code) AS VARCHAR(100)) AS ColName
,ExamName + ' (' + Board + '): ' + Result AS Concatenated
FROM #tbl AS tbl
) AS t
PIVOT
(
MIN(Concatenated) FOR ColName IN(Exam_1,Exam_2,Exam_3 /*add as many as you need*/)
) AS p
The result:
11537 12984 TheName SSC (b04): 1st HSC (b04): 2nd BA(H) (u33): 2nd
The next code does quite the same, but creates XML instead of plain text, which allows to separate your data afterwards:
SELECT p.ID
,p.Code
,p.EmployeeName
,E1
,E1.value('(/exam/#ExamName)[1]','varchar(100)') AS ExamName1
,E1.value('(/exam/#Board)[1]','varchar(100)') AS Board1
,E1.value('(/exam/#Result)[1]','varchar(100)') AS Result1
,E2
,E2.value('(/exam/#ExamName)[1]','varchar(100)') AS ExamName2
,E2.value('(/exam/#Board)[1]','varchar(100)') AS Board2
,E2.value('(/exam/#Result)[1]','varchar(100)') AS Result2
,E3
,E3.value('(/exam/#ExamName)[1]','varchar(100)') AS ExamName3
,E3.value('(/exam/#Board)[1]','varchar(100)') AS Board3
,E3.value('(/exam/#Result)[1]','varchar(100)') AS Result3
FROM
(
SELECT tbl.ID
,tbl.Code
,tbl.EmployeeName
,'Exam_' + CAST(ROW_NUMBER() OVER(PARTITION BY tbl.ID ORDER BY tbl.Code) AS VARCHAR(100)) AS ColName
,(SELECT ExamName AS [#ExamName],Board AS [#Board],Result AS [#Result] FOR XML PATH('exam')) AS AsXML
FROM #tbl AS tbl
) AS t
PIVOT
(
MIN(AsXML) FOR ColName IN(Exam_1,Exam_2,Exam_3 /*add as many as you need*/)
) AS p
OUTER APPLY
(
SELECT CAST(p.Exam_1 AS XML) AS E1
,CAST(p.Exam_2 AS XML) AS E2
,CAST(p.Exam_3 AS XML) AS E3
) AS CastedToXml
The result:
11537 12984 TheName <exam ExamName="SSC" Board="b04" Result="1st" /> SSC b04 1st <exam ExamName="HSC" Board="b04" Result="2nd" /> HSC b04 2nd <exam ExamName="BA(H)" Board="u33" Result="2nd" /> BA(H) u33 2nd
This is old-fashioned-pivot which is quite often better then normal pivot:
;WITH Numberd AS
(
SELECT *
,ROW_NUMBER() OVER(PARTITION BY tbl.ID ORDER BY tbl.Code) AS Number
FROM #tbl AS tbl
)
SELECT ID,Code,EmployeeName
,MAX(CASE WHEN Number=1 THEN ExamName END) AS ExamName1
,MAX(CASE WHEN Number=1 THEN Board END) AS Board1
,MAX(CASE WHEN Number=1 THEN Result END) AS Result1
,MAX(CASE WHEN Number=2 THEN ExamName END) AS ExamName2
,MAX(CASE WHEN Number=2 THEN Board END) AS Board2
,MAX(CASE WHEN Number=2 THEN Result END) AS Result2
,MAX(CASE WHEN Number=3 THEN ExamName END) AS ExamName3
,MAX(CASE WHEN Number=3 THEN Board END) AS Board3
,MAX(CASE WHEN Number=3 THEN Result END) AS Result3
FROM Numberd
GROUP BY ID,Code,EmployeeName
The last option was dynamic SQL...

Answer 2

Thnak you all , But My purpose is solved with this
SELECT
he.Id,he.Code,he.Name EmployeeName,en.Name [ExamName],bu.Name
[Board],[Result] = CASE WHEN
ac.GPA IS NULL THEN ac.Result ELSE CAST(ac.GPA AS VARCHAR) END,
ac.PassingYear
INTO #Temp
FROM H_Employee AS he
INNER JOIN
H_AcademicQualification AS ac ON ac.H_EmployeeId = he.Id
INNER JOIN
ExamName AS en ON en.Id = ac.ExamNameId
INNER JOIN
GroupSubject AS gs ON gs.Id = ac.GroupSubjectId
INNER JOIN
BoardUniversity AS bu ON bu.Id = ac.BoardUniversityId
Then
SELECT
a.id, a.Code, a.EmployeeName, a.ExamName, a.Board, a.Result, a.Passingyear,
b.ExamName, b.Board, b.Result, b.Passingyear,
c.ExamName, c.Board, c.Result, c.Passingyear,
d.ExamName, d.Board, d.Result, d.Passingyear
FROM
(SELECT
Id, Code, EmployeeName ,ExamName = CASE WHEN
ExamName LIKE 'S.S.%' THEN 'S.S.C' END,
Board=Board ,[Result]=CASE WHEN
Result IS NULL THEN Result ELSE CAST(Result AS VARCHAR) END,
Passingyear
FROM #temp
WHERE ExamName LIKE 'S.S.%') AS a
LEFT JOIN
(SELECT Id, Code, EmployeeName ,ExamName = CASE WHEN
ExamName LIKE 'H.S.%' THEN 'H.S.C' END,
Board=Board,[Result] = CASE WHEN
Result IS NULL THEN Result ELSE CAST(Result AS VARCHAR) END,
Passingyear
FROM #temp
WHERE ExamName LIKE 'H.S.%') AS b
ON a.Id=b.Id
LEFT JOIN
(SELECT Id, Code, EmployeeName ,ExamName = CASE WHEN
ExamName LIKE 'B.%' THEN 'Graduate' END,
Board=Board, [Result] = CASE WHEN
Result IS NULL THEN Result ELSE CAST(Result AS VARCHAR) END,
Passingyear
FROM #temp
WHERE ExamName LIKE 'B.%') AS c
ON a.Id=c.Id
LEFT JOIN
(SELECT Id, Code, EmployeeName, ExamName = CASE WHEN
ExamName LIKE 'M.%' THEN 'Post-Graduate' END,
Board=Board,[Result] = CASE WHEN
Result IS NULL THEN Result ELSE CAST(Result AS VARCHAR) END,
Passingyear
FROM #temp
WHERE ExamName LIKE 'M.%') AS d
ON a.Id=d.Id
Above query serve me purposes but will try #Shnugo Sample , Any way thank you all .