Re: Grouping Too Closely

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От Greg Sabino Mullane
Тема Re: Grouping Too Closely
Дата
Msg-id 7fdee0e68098da02600bf51be5a7f3f5@biglumber.com
обсуждение исходный текст
Ответ на Grouping Too Closely  ("Thomas F. O'Connell" <tfo@sitening.com>)
Ответы Re: Grouping Too Closely
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> What I'd like to be able to do is select all records corresponding to
> the minimum value of seq1 for each value of seq2 corresponding to a
> given fkey (with a lower bound on the value of seq2).

I'm not sure how uid figures in, but would this do what you want?:

SELECT fkey, uid, seq2, min(seq1)
FROM my_table
WHERE seq2 > 2
GROUP BY fkey, uid, seq2
ORDER BY 1,2,3;

- --
Greg Sabino Mullane greg@turnstep.com
PGP Key: 0x14964AC8 200506250019
http://biglumber.com/x/web?pk=2529DF6AB8F79407E94445B4BC9B906714964AC8
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