problem in executing dynamic query using pivot with syntax error Incorrect syntax near ' + ' - sql

Question

I want to Create a query with dynamic query and in this query i use concat some cells , when use concat like 'N'subject:' + ' ' + ContentProductionTitle' i get syntax error
error : Incorrect syntax near ' + '.
DECLARE #cols AS NVARCHAR(MAX),
#query AS NVARCHAR(MAX);
SET #cols = STUFF((SELECT distinct ',' + QUOTENAME(c.KeyWordTitle)
FROM TBL_CU_ContentProduction_KeyWord c
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)')
,1,1,'')
set #query = 'SELECT ' + #cols + ' from
(
select
isnull((select N'subject:' + ' ' + ContentProductionTitle
from Tbl_Cu_ContentProductionCalendar
where ContentProductionCalendarID = a.ActionSubjectId ),'')
+' ' +
isnull((select top 1 N'author:'+ p.FullName + ' ' from users.TblProfiles as p
where p.UserId= a.ActionUserID ),'') +' ' +
isnull((select top 1 N'edit bye:' + ' ' + p.FullName from users.TblProfiles as p
where p.UserId= a.CheckAgain ) ,'') as title
, a.ActionDateTo
, k.KeyWordTitle
from TBL_CU_ContentProduction_KeyWord as k
inner join Tbl_CU_ContentProduction as cp
on k.ContentGUID = cp.ContentGUID
inner join Tbl_Cu_ActionContentProduction as a
on a.ContentGUID = cp.ContentGUID
) x
pivot
(
max(ActionDateTo)
for KeyWordTitle in (' + #cols + ')
) p '
execute(#query)

Answer 1

you need to escape single quote inside your query string with '':
set #query = 'SELECT ' + #cols + ' from
(
select
isnull((select N''subject:'' + '' '' + ContentProductionTitle
from Tbl_Cu_ContentProductionCalendar
where ContentProductionCalendarID = a.ActionSubjectId ),'''')
+'' '' +
isnull((select top 1 N''author:''+ p.FullName + '' '' from users.TblProfiles as p
where p.UserId= a.ActionUserID ),'''') +'' '' +
isnull((select top 1 N''edit bye:'' + '' '' + p.FullName from users.TblProfiles as p
where p.UserId= a.CheckAgain ) ,'''') as title
, a.ActionDateTo
, k.KeyWordTitle
from TBL_CU_ContentProduction_KeyWord as k
inner join Tbl_CU_ContentProduction as cp
on k.ContentGUID = cp.ContentGUID
inner join Tbl_Cu_ActionContentProduction as a
on a.ContentGUID = cp.ContentGUID
) x
pivot
(
max(ActionDateTo)
for KeyWordTitle in (' + #cols + ')
) p '