En un mensaje anterior dev@archonet.com escribió:
> On 3/6/01, 12:59:40 AM, Fernando "P." Schapachnik
> <fernando@schapachnik.com.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@schapachnik.com.ar
