SQL Server: table Pivot

Question

create PROC [dbo].[Sample]  
@fromDate datetime, @toDate datetime, @office varchar(30) 
AS 
declare @char varchar(200) 
DECLARE @Temp TABLE (ID int, Name varchar(50), Countt int, Reason varchar(20)) 

INSERT INTo @Temp (ID, Name, Countt, Reason) 
SELECT DD.ID, O.Name, Count(DD.Reason) Countt, convert(varchar,DD.Reason) Reason FROM samp1 AS DD  
INNER JOIN samp3 AS O ON O.ID = DD.ID 

select @char = coalesce(@char + ',', '') + reason from @Temp 

select * 
FROM 
(
    select distinct ID, Name, Reason, sum(Countt) as Countt from @Temp group by Name, Reason, ID 
)P 

PIVOT 
(
    SUM(Countt) 
    FOR Reason 
    IN (select @char) 
) AS pvt 



Error: Msg 156, Level 15, State 1, Procedure Sample, Line 45 
Incorrect syntax near the keyword 'select'. 

peut-il me aider

Answer 1

SELECT @char = COALESCE(@char + ',[' + reason + ']', '[' + reason + ']') 
FROM @Temp 

DECLARE @pvtQuery VARCHAR(2500) 

SET @pvtQuery = 
' 
SELECT ID, Name, ' + @char + ' 
FROM 
( 
    SELECT DISTINCT ID, Name, Reason, SUM(Countt) AS Countt 
    FROM @Temp 
    GROUP BY Name, Reason, ID 
) P 
PIVOT 
( 
    SUM(Countt) 
    FOR Reason 
    IN (' + @char + ') 
) AS pvt 
' 

EXEC (@pvtQuery)