From: | "Fernando P(dot) Schapachnik" <fernando(at)schapachnik(dot)com(dot)ar> |
---|---|
To: | dev(at)archonet(dot)com |
Cc: | "Fernando P(dot) Schapachnik" <fernando(at)schapachnik(dot)com(dot)ar>, pgsql-general(at)postgresql(dot)org |
Subject: | Re: interval question |
Date: | 2001-03-06 22:35:41 |
Message-ID: | 200103062235.f26MZgO00717@funes.schapachnik.com.ar |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-general |
En un mensaje anterior dev(at)archonet(dot)com escribió:
> On 3/6/01, 12:59:40 AM, Fernando "P." Schapachnik
> <fernando(at)schapachnik(dot)com(dot)ar> wrote regarding [GENERAL] interval question:
>
> > Hello:
> > Maybe somebody on the list can give me a hand with this. I
> > have:
> > id serial,
> > start time,
> > duration time
>
> Surely "duration" should be of type interval.
> Also - are you sure "start" should be time and not timestamp - depends if
> you don't care about dates.
>
> > (That is, ids have an start time and a duration).
>
> > I want to know which ids are current, ie, which satisfy
> > start<=now<=start+duration.
>
> SELECT id FROM foo WHERE start<=now() AND now<=(start + duration);
It worked fine! Thanks!
Fernando P. Schapachnik
fernando(at)schapachnik(dot)com(dot)ar
From | Date | Subject | |
---|---|---|---|
Next Message | GH | 2001-03-06 23:13:09 | Re: Inserting values into a SERIAL field |
Previous Message | Randy Hall | 2001-03-06 22:10:02 | Re: how to find DB names in Postgres 7.1? |