Pivot table and combine records onto 1 line - tsql

Question

I've tried many different ways to pivot a table to show all records on 1 row. I've provided my query for the closest solution I came up with. It'll probably be easier if I illustrate what I need. Since there can be an unlimited number of teacher survey questions the query has to be dynamic. I've modified the column names to make it easier to read.
teacherSurveyQuestions
TSQID CID Order OQReference Stem
1 1011 1 q1_rb blabla
2 1011 2 q2_rb blabla
3 1011 3 q2a_cb blabla
teacherSurveyUserID
TSUID firstName lastName UID
1 Bob Smith 1027
2 Tom Jones 1034
teacherSurveyAnswers
TSAID UID TSQID TSUID Response
1 1027 1 1 Bob 1
2 1027 2 1 Bob 2
3 1027 3 1 Bob 3
4 1034 1 2 Tom 1
5 1034 2 2 Tom 2
6 1034 3 2 Tom 3
Now I need this data to look like this:
firstName lastName q1_rb q2_rb q2a_cb
Bob Smith Bob 1 Bob 2 Bob 3
Tom Jones Tom 1 Tom 2 Tom 3
Here's what I have so far that kind of works except all the responses are NULL
declare #query as nvarchar(max),
#colsPivot as nvarchar(max)
select #colsPivot = stuff((select ','
+ quotename(OQReference)
from teacherSurveyQuestions tsq
where tsq.CID = 1011
order by tsq.Order
for xml path(''), type
).value('.', 'nvarchar(max)')
,1,1,'')
set #query
= 'select *
from
(
select firstName, lastName, value, col +''_''+ CAST(rn as varchar(10)) as col
from
(
select
tsu.TSUID
,tsu.firstName
,tsu.lastName
,tsq.OQReference
,tsa.Response
,ROW_NUMBER() over(partition by tsu.TSUID order by tsq.Order) rn
from teacherSurveyQuestions tsq
inner join teacherSurveyAnswers tsa on tsa.TSQID = tsq.TSQID
inner join teacherSurveyUsers tsu on tsu.TSUID = tsa.TSUID
where tsq.CID = 1011
) x
unpivot
(
value
for col in (OQReference)
) u
) x1
pivot
(
max(value)
for col in ('+ #colspivot +')
) p'
exec(#query)
Result of query:
firstName lastName q1_rb q2_rb q2a_cb
Bob Smith NULL NULL NULL
Tom JOnes NULL NULL NULL

Answer 1

Try this
declare #query as nvarchar(max),
#colsPivot as nvarchar(max)
select #colsPivot = stuff((select ','
+ quotename(OQReference)
from teacherSurveyQuestions tsq
where tsq.CID = 1011
order by tsq.[Order]
for xml path(''), type
).value('.', 'nvarchar(max)')
,1,1,'')
set #query
= 'select firstName, lastName,'+ #colspivot +'
from
(
select firstName, lastName,Response, value
from
(
select
tsu.TSUID
,tsu.firstName
,tsu.lastName
,tsq.OQReference
,tsa.Response
,ROW_NUMBER() over(partition by tsu.TSUID order by tsq.[Order]) rn
from teacherSurveyQuestions tsq
inner join teacherSurveyAnswers tsa on tsa.TSQID = tsq.TSQID
inner join teacherSurveyUserID tsu on tsu.TSUID = tsa.TSUID
where tsq.CID = 1011
) x
unpivot
(
value
for col in (OQReference)
) u
) x1
pivot
(
max(Response)
for value in ('+ #colspivot +')
) p'
exec(#query)
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