Re: group by function, make SQL cleaner?

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От pgsql@yukonho.de
Тема Re: group by function, make SQL cleaner?
Дата
Msg-id 200603162245.03701.pgsql@yukonho.de
обсуждение исходный текст
Ответ на group by function, make SQL cleaner?  (Bryce Nesbitt <bryce1@obviously.com>)
Список pgsql-sql
this should work,
#
SELECT date_trunc('day',endtime),count(*)FROM eg_event where endtime >= '2006-02-01' and endtime < '2006-03-01'GROUP BY
1 ORDER BY 1; 

hope this helps
best regards,


Stefan









Am Donnerstag, 16. März 2006 06:18 schrieb Bryce Nesbitt:
> I've got a working query:
>
> stage=# SELECT date_trunc('day',endtime),count(*)
> FROM eg_event where endtime >= '2006-02-01' and endtime < '2006-03-01'
> GROUP BY  date_trunc('day',endtime)
> ORDER BY date_trunc('day',endtime);
>
>      date_trunc      | count
> ---------------------+-------
>  2006-02-01 00:00:00 |   253
>  2006-02-02 00:00:00 |   245
>  2006-02-03 00:00:00 |   231
>  2006-02-04 00:00:00 |   313
>  2006-02-05 00:00:00 |   285
>  2006-02-06 00:00:00 |   194
>  2006-02-07 00:00:00 |   229
>  2006-02-08 00:00:00 |   239
>  2006-02-09 00:00:00 |   250
>  2006-02-10 00:00:00 |   245
>  2006-02-11 00:00:00 |   275
>
> Is there a way to eliminate the ugly repeated use of
> date_trunc('day',endtime)?
>
>
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