Ok. I think I have what I need... Almost. Here is the query I settled on:
SELECT b.zip, b.state,b.storename,
(3956 * (2 * ASIN(SQRT(
POWER(SIN(((a.lat-b.lat)*0.017453293)/2),2) +
COS(a.lat*0.017453293) *
COS(b.lat*0.017453293) *
POWER(SIN(((a.lon-b.lon)*0.017453293)/2),2))))) AS distance
FROM zipcodes a, locations b
WHERE
a.zip = "85032"
GROUP BY distance
having distance <= 10;
The problem is that in my locations (stores) table I am required to have a
latitude and longitude. Is there anyway to modify this query to look up the
lat/lon of the zipcode in the locations (stores) table BEFORE it does the
remainder of the query? The goal is to not need those in the locations
table.
Thanks
Steffan
---------------------------------------------------------------
T E L 6 0 2 . 5 7 9 . 4 2 3 0 | F A X 6 0 2 . 9 7 1 . 1 6 9 4
Steffan A. Cline
[EMAIL PROTECTED] Phoenix, Az
http://www.ExecuChoice.net USA
AIM : SteffanC ICQ : 57234309
The Executive's Choice in Lasso driven Internet Applications
Lasso Partner Alliance Member
---------------------------------------------------------------
> From: "Steffan A. Cline" <[EMAIL PROTECTED]>
> Date: Sat, 08 Oct 2005 15:59:35 -0700
> To: "[email protected]" <[email protected]>
> Subject: Distance between Zip codes
>
> I was wondering if anyone might have a canned query I could use for the
> following scenario.
>
> I need to search for a list of locations within a certain distance of a user
> given zip code and order them by driving distance calculated from a table of
> zip codes containing lon and lat info from zipwise.
>
> Example:
>
> 1. I enter my zip of 85050
> 2. enter a range in miles
> 3. search a table of establishments within x miles from step 2
> 4. list top ten within range of step 2 ordered by distance.
>
> For the establishments I have the zip codes and as I said I have the zipwise
> tables.
>
> Any suggestions? This query if completely possible within MySQL is well
> above me.
>
>
>
> Thanks
>
> Steffan
>
> ---------------------------------------------------------------
> T E L 6 0 2 . 5 7 9 . 4 2 3 0 | F A X 6 0 2 . 9 7 1 . 1 6 9 4
> Steffan A. Cline
> [EMAIL PROTECTED] Phoenix, Az
> http://www.ExecuChoice.net USA
> AIM : SteffanC ICQ : 57234309
> The Executive's Choice in Lasso driven Internet Applications
> Lasso Partner Alliance Member
> ---------------------------------------------------------------
>
>
>
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