Re: Restriction by grouping problem.
| От | Josh Berkus |
|---|---|
| Тема | Re: Restriction by grouping problem. |
| Дата | |
| Msg-id | web-92249@davinci.ethosmedia.com обсуждение исходный текст |
| Ответ на | Restriction by grouping problem. ("Jeff Barrett" <jbarrett@familynetwork.com>) |
| Список | pgsql-sql |
Jeff,
> The query I have now:
>
> SELECT min(datettime), sid FROM logs GROUP by sid;
>
> This returns the first instance of an sid in the logs table, there
> can be
> many rows in the table for each sid. The problem I have is that I do
> not
> need the SID I just need to group the min(datetime) by it.
The answer to this question is simple:
SELECT min(datetime) as mintime FROM logs GROUP BY sid;
However, I get the impression that your intended problem was more
complicated. Can you re-explain it?
-Josh
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