From: | Jason Earl <jdearl(at)yahoo(dot)com> |
---|---|
To: | Justin Clift <justin(at)postgresql(dot)org>, Cefull Lo <cefull_lo(at)yahoo(dot)com>, PostgreSQL General Mailing List <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: time interval question |
Date: | 2001-08-21 18:52:24 |
Message-ID: | 20010821185224.47550.qmail@web10001.mail.yahoo.com |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | 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(at)postgresql(dot)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(at)postgresql(dot)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/
From | Date | Subject | |
---|---|---|---|
Next Message | Larry Rosenman | 2001-08-21 19:12:41 | Re: macaddr data type issue |
Previous Message | Tom Lane | 2001-08-21 18:39:43 | Re: macaddr data type issue |