Re: Extracting data by months
От | John McKown |
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Тема | Re: Extracting data by months |
Дата | |
Msg-id | Pine.LNX.4.21.0008031416100.30765-100000@linux2.johnmckown.net обсуждение исходный текст |
Ответ на | Extracting data by months (Antti Linno <alligator@all.ee>) |
Ответы |
Re: Extracting data by months
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Список | pgsql-sql |
This might seem rather silly, but could you simply do something like: select * from database where date_field >= '01/01/2000'::date and date_field < '02/01/2000'::date; Of course, if date_field could contain many different years, then this would not get you the result you wanted. John On Thu, 3 Aug 2000, Antti Linno wrote: > Lo. > > I'm in dire need of knowledge, how to extract data by month. Monthday > and year arent' important, those I can't give from perl script, but what > I do give to postgres are the numbers of the months. Date field is in > timestamp. I thought about date_trunc, but I can't think of, how to get > data with it. In script will be 12 queries, for each month, to get the > news from that month. > Btw, is there somewhere a manual about date_trunc, the docs that come with > RH6.1 distribution are somewhat short and lacking explanation of > date_trunc. > Antti > >
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