Re: [SQL] Latitude / Longitude

Look at contrib/earthdistance, I **think** it does what you need.

LER

On Thu, 2002-09-12 at 12:44, Tim Perdue wrote:
> Hi Folks -
>
> I'm working on a global weather database for a client and have hit an issue
> which I'm sure has been solved before. Unfortunately, the site search doesn't
> pull up anything.
>
> Essentially, I've got two tables, one with city/county/lat/long and another
> with lat/long/weather data.
>
> None of the lat/longs in the two tables match up directly, so I can't do a
> simple join of the two tables. I need to join on closest proximity on the
> lat/long fields.
>
> Any suggestions? It seems to me this will be pretty expensive on CPU resources
> unless there's a really elegant trick uncovered.
>
> Tim
>
> --
> Founder - PHPBuilder.com / Geocrawler.com / SourceForge
> GPG Public Key: http://www.perdue.net/personal/pgp.php
> Perdue, Inc. / Immortal LLC
> 515-554-9520
--
Larry Rosenman                     http://www.lerctr.org/~ler
Phone: +1 972-414-9812                 E-Mail: ler@lerctr.org
US Mail: 1905 Steamboat Springs Drive, Garland, TX 75044-6749