How can I "merge" or "flatten" results from a query which returns multiple rows into a single result

Posted by dsm on Stack Overflow See other posts from Stack Overflow or by dsm
Published on 2010-05-31T11:24:17Z Indexed on 2010/05/31 11:32 UTC
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sql

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sybase

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pivot

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flatten

I have a simple query over a table, which returns results like the following:

id    id_type  id_ref
2702  5        31
2702  16       14
2702  17       3
2702  40       1
2702  26       4

And I would like to merge the results into a single row, for instance:

id    concatenation 
2702  5,16,17,40,26:31,14,3,1,4

Is there any way to do this within a trigger?

NB: I know I can use a cursor, but I would really prefer not to unless there is no better way.

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