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 ______AGLIO DATABASE SOLUTIONS___________________________ Josh Berkus Complete information technology josh@agliodbs.com and data management solutions (415) 565-7293 for law firms, small businesses fax 621-2533 and non-profit organizations. San Francisco
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