Comma separated values in one column - SQL SERVER

Question

Customer Table
--------------
ID   Name
1   James
2   Peter

Order Table
---------------
OrderId  CustId
100     1
101     1
102     2

How can I w

Answer 1

A very simple and handy solution given on the link below.

http://tejasnshah.wordpress.com/2009/02/28/sql-server-get-column-values-as-comma-seperated-list-using-xml-path-instead-of-udfs-using-sql-coalesce/

The SQL query written on that link is in an image ...so i couldn't copy it here.

Answer 2

Adding full details from Sheikh Haris' link.

Given this table:

To get output like:

Use the following SQL:

SELECT field1,
    Substring(convert(varchar(100),
    (
    SELECT (', ' + field2)
        FROM #test t2
        WHERE t1.field1 = t2.field1
        ORDER BY field1, field2
    FOR XML PATH( '' )
                    )), 3, 1000 )
FROM #test t1
GROUP BY field1

I added a convert function to the substring so that the WIDEMEMO field would be displayed (SQL Server)

Answer 3

Create a User Defined Function as shown below

CREATE FUNCTION [dbo].[CommaSeperatedOrderIDs](@CustId INT) returns varchar(Max)
AS  
BEGIN   

DECLARE @CommaSeperatedValues VARCHAR(MAX)
SELECT @CommaSeperatedValues = COALESCE(@CommaSeperatedValues+',' , '') + OrderID
FROM OrderTable WHERE CustId = @CustId
RETURN @CommaSeperatedValues

END

And then,

select ID, [Name], ([dbo].[CommaSeperatedOrderIDs](ID)) AS ListofOrders
From CustomerTable

Answer 4

Please try:

select ID, [Name],
(select OrderID+',' from OrderTable where CustID=ID
group by OrderID for xml path('')) AS ListOfOrders
From CustomerTable