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Re: FW: Random Selection from TABLE

From: Salvatore Sferrazza <salzie(at)instigate(dot)net>
To: pgsql-novice(at)postgresql(dot)org
Subject: Re: FW: Random Selection from TABLE
Date: 2001-12-20 22:24:14
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-novice
I've implemented something like this before, the way we solved it was by
having a list of "candidate" images in a table indexed by some entity.  We
then used the front end tool (in our case, Java) to select the candidates,
cache them and then pull randomly from the cache upon rendering the
page.  Asking SQL to do this may not be the best idea, since you don't
want one more round-trip per page.



On Fri, 21 Dec 2001, Kris-Jon Fenton wrote:

> Yes, I do have a question, how do I do this?
> -----Original Message-----
> From: pgsql-novice-owner(at)postgresql(dot)org
> [mailto:pgsql-novice-owner(at)postgresql(dot)org]On Behalf Of Josh Berkus
> Sent: Friday, 21 December 2001 2:41 AM
> To: Kris-Jon Fenton; pgsql-novice(at)postgresql(dot)org
> Subject: Re: [NOVICE] FW: Random Selection from TABLE
> Kris,
> > I want to be able to select entries randomly so I can change the
> > images on a
> > website using PHP.
> > 
> > Basically I need to have a randomly rotating image that will change
> > whenever
> > the page is refreshed.
> > 
> > I want to store the image names in a table and have them selected
> > from
> > there.
> Sounds like fun!  Do you have a question for the list?
> -Josh
> ______AGLIO DATABASE SOLUTIONS___________________________
>                                        Josh Berkus
>   Complete information technology      josh(at)agliodbs(dot)com
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Subject: Using a tablename as a parameter to a function.
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Subject: Re: FW: Random Selection from TABLE

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