Re: triggers on date?
От | Jason Earl |
---|---|
Тема | Re: triggers on date? |
Дата | |
Msg-id | 87vg7x5jib.fsf@npa01zz001.simplot.com обсуждение исходный текст |
Ответ на | Re: triggers on date? (Lev Lvovsky <lists1@sonous.com>) |
Список | pgsql-general |
With cron you could make your script "grab clients" every minute. If you need even smaller increments between checks then the thing to do would be to write a long running program. Jason Lev Lvovsky <lists1@sonous.com> writes: > this is for a billing system, at this point it's a toss-up b/w the > following: > > 1. a script grabs clients which need billing on a nightly basis > 2. a script grabs clients which need billing for a particular time > interval (every hour, ever two hours etc...). > > what methods are used for making this close to real-time - constant > polling? > > thanks! > -lev > > On 2 Jul 2002, Jason Earl wrote: > > > > > If it only needs to be /fairly/ realtime, then you could use cron to > > fire a script every minute. Otherwise you could write an external > > long-running program that listens for notifies. > > > > Jason > > > > Lev Lvovsky <lists1@sonous.com> writes: > > > > > is it possible to create a trigger when the system time has reached the > > > date of a particular record? I know this is possible with an external > > > script, but I'm not quite sure how to go about making it fairly > > > real-time... > > > > > > thanks! > > > -lev > > > > > > > > > > > > > > > ---------------------------(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 > > > > -- > personal site :: www.sonous.com > rave site :: raves.sonous.com > I'm a DJ! site :: djkgb.sonous.com > > > "...is the best show on television. Its cooler than the other side of the > pillow." -Kevin King
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