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LIMIT within GROUP BY

LIMIT within GROUP BY

2007-10-04       - By Peter Brawley

 Back
Miroslav

>My goal is to sum 7 greatest results for each person.

Have a look at 'Within-group quotas (Top N per group)' at
http://www.artfulsoftware.com/infotree/queries.php.

PB

-- --

Miroslav Monkevic wrote:
> Hello,
>
> MySQL 4.1
>
> I have query:
> SELECT SUM(points) as ranking FROM results GROUP BY person_id ORDER BY
> ranking DESC
>
> My goal is to sum 7 greatest results for each person.
>
> In more general, my question is: is there a way to limit number of
> records within  groups in  "group by" query.
>
> Thank you!
>
>