Re: time interval question
От | Jason Earl |
---|---|
Тема | Re: time interval question |
Дата | |
Msg-id | 20010821185224.47550.qmail@web10001.mail.yahoo.com обсуждение исходный текст |
Ответ на | Re: time interval question (Justin Clift <justin@postgresql.org>) |
Список | pgsql-general |
On my box: processdata=# select version(); version --------------------------------------------------------------- PostgreSQL 7.1.3 on i686-pc-linux-gnu, compiled by GCC 2.95.4 (1 row) You can do something like this: SELECT dt, dt::time FROM prod_journal WHERE dt::time BETWEEN '00:00:00' AND '08:30:00'; dt in this case is a timestamp field, and the results are what you would expect. Take care, Jason --- Justin Clift <justin@postgresql.org> wrote: > Hi, > > You could do something along the lines of : > > SELECT foo, bar FROM baz WHERE date_part('hour', > foo) > 0 AND > date_part('hour', foo) < 8; > > Simple, but effective. Only works for whole hours > like in your example > though. > > :-) > > Regards and best wishes, > > Justin Clift > > > Cefull Lo wrote: > > > > given a timestamp data, e.g. 2001-08-18 > 06:01:23+08 > > How can I check that is it lie between 00:00:00 > and 08:00:00 and ignore the > > date? > > > > -- > > content-type:kiss/hug > > > > ---------------------------(end of > broadcast)--------------------------- > > TIP 5: Have you checked our extensive FAQ? > > > > > http://www.postgresql.org/users-lounge/docs/faq.html > > -- > "My grandfather once told me that there are two > kinds of people: those > who work and those who take the credit. He told me > to try to be in the > first group; there was less competition there." > - Indira Gandhi > > ---------------------------(end of > broadcast)--------------------------- > TIP 3: if posting/reading through Usenet, please > send an appropriate > subscribe-nomail command to majordomo@postgresql.org > so that your > message can get through to the mailing list cleanly __________________________________________________ Do You Yahoo!? Make international calls for as low as $.04/minute with Yahoo! Messenger http://phonecard.yahoo.com/
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