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SQL Summarise entires into one line

Posted on 2014-12-15
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Last Modified: 2014-12-15
Hi All,

I have a table with ID and Invoice_Number. Multiple invoices per ID. I want to group by ID and have Invoice_Numbers as a comma seperated line against the ID.

So

1    101
1    102
1    103
2    201
2    202

becomes

1    101, 102, 103
2    201, 202

Can someone point me in the rough direction?

Thanks
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Question by:James Elliott
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3 Comments
 
LVL 35

Accepted Solution

by:
ste5an earned 2000 total points
ID: 40499882
Use FOR XML PATH(). E.g.

DECLARE @Sample TABLE ( ID INT, Payload INT )
 
INSERT  INTO @Sample
VALUES  ( 1, 101 ),
        ( 1, 102 ),
        ( 1, 103 ),
        ( 2, 201 ),
        ( 2, 202 );


SELECT  O.ID ,
        STUFF(( SELECT  ', ' + CAST(I.Payload AS VARCHAR(255))
                FROM    @Sample I
                WHERE   I.ID = O.ID 
				FOR XML PATH('')
              ), 1, 2, '')
FROM    @Sample O
GROUP BY O.ID;

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LVL 12

Author Comment

by:James Elliott
ID: 40499907
Great, nearly there.

It is however cutting off the very first digit of the concatenated column.

So instead I'm getting:

1   abc
1   123
2   123
2   abc


1   bc, 123
2   23, abc
0
 
LVL 12

Author Comment

by:James Elliott
ID: 40499909
Ignore, fixed.

Thanks for your help.
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