Question

ID           Name
1            A
1            B
1            C
2            X
2            Y
3            P
3            Q
3            R

These are the columns in a table. I want to get output like

ID    Company
    1 A,B,C
    2 X, Y
    3 P,Q,R

Restriction is that I cannot use WHILE or CURSOR. Please write a query for the same.

Answer 1

This query should do it – uses FOR XML PATH which is new in SQL Server 2005 – hope you are on 2005 or higher, you didn’t clearly specify…..

SELECT
    ID,
    STUFF(CAST((SELECT ','+Name FROM dbo.YourTable t2
                WHERE t2.ID = dbo.YourTable.ID
                FOR XML PATH(''), TYPE) AS VARCHAR(MAX)), 1, 1, '') AS 'Company'
FROM 
   dbo.YourTable
GROUP BY 
   ID