Here is some perl code which does what you want.
----- Original Message -----
From: "Chris Ruprecht" <chrup999@yahoo.com>
To: "pgsql" <pgsql-sql@postgresql.org>
Sent: Monday, October 08, 2001 8:58 AM
Subject: [SQL] Search by longitude/latitude
> Hi all,
>
> I need to implement "Find all hospitals in a 5 mile radius". Say I have
all
> the coordinates on them stored in a table with the fields longitude and
> latitude. Has anybody some sample code for that?
>
> Best regards,
> Chris
>
>
>
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