Dynamic sql pivot values coming in seperate columns - sql

Question

HI I am trying to write dynamic pivot as I have over 100 columns
ID Question Answer
1 Name peter
1 DOB 11/12/2003
1 address …..
1 Issue1 d
1 Issue2 a
2 Name sam
2 DOB 10/01/1998
2 address …..
2 Issue1 p
2 Issue2 f
I want the output like this:
ID Name DOB address Issue1 Issue2
1 peter 11/12/2003 …. d a
2 sam 10/01/1998 …. p f
Here is the code that I have used:-
select #cols = STUFF((SELECT distinct ',' + QUOTENAME(Question)
from #temp
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)')
,1,1,'')
set #query = N'SELECT ID + #cols + N'
from #temp
pivot
(
max([answer])
for Question in (' + #cols + N')
) p '
exec sp_executesql #query;
But I am getting each answer in a separate row. I want all the answers of an ID to come in one row. Can somebody help me. Appreciate your time on this. Thank you.
I am getting the output like this, which is not I want. I want the output as above.
ID Name DOB address Issue1 Issue2
1 Peter
1 11/12/2003
1 …
1 d
1 a

Answer 1

It looks like you are looking for a way to dynamically create a pivot based on your table without aggregation. You can try the following:
SELECT #cols = STUFF((SELECT ',' + QUOTENAME(Question)
FROM #TEMP
GROUP BY QUESTION
ORDER BY QUESTION
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)')
,1,1,'')
set #query = 'SELECT ID,' + #cols + ' FROM
(
SELECT ID, Question, Answer
FROM #TEMP
) x
pivot
(
MAX(Answer)
for Question in (' + #cols + ')
) p '
execute(#query);
Expected Output:
+----+---------+------------+--------+--------+-------+
| ID | address | DOB | Issue1 | Issue2 | Name |
+----+---------+------------+--------+--------+-------+
| 1 | ….. | 11/12/2003 | d | a | peter |
| 2 | ….. | 10/1/1998 | p | f | sam |
+----+---------+------------+--------+--------+-------+