| List: | General Discussion | « Previous MessageNext Message » | |
| From: | Dan Nelson | Date: | February 24 2000 11:14pm |
| Subject: | Re: Zip codes... | ||
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In the last episode (Feb 24), Roy Nasser said: > Hello, > > I am from Brasil (As many may know... :)) and i want to do some sql stuff > with Zipcodes... > > I think that it is acceptable due to the way that the postal system works > here to use the numbers closest...i.e. If you mean closest in the mathematical sense, SELECT zipcode FROM table ORDER BY ABS(zipcode-$myzip) will work. If you want true geographic locality, you'll have to store X + Y coordinates for each zipcode or something similar, and order by abs(zipx-my_x) * abs(zipy*my_y) . -- Dan Nelson dnelson@stripped
| Thread | ||
|---|---|---|
| • Zip codes... | Roy Nasser | 25 Feb |
| • Re: Zip codes... | Dan Nelson | 25 Feb |
| • RE: Zip codes... | Roy Nasser | 25 Feb |
| • Re: Zip codes... | Dan Nelson | 25 Feb |
| • RE: Zip codes... | Roy Nasser | 25 Feb |
| • Re: Zip codes... | Dan Nelson | 25 Feb |
| • RE: Zip codes... | Roy Nasser | 25 Feb |
| • Re: Zip codes... | Benjamin Pflugmann | 25 Feb |
| • Re: Zip codes... | James Treworgy | 25 Feb |
| • Re: Zip codes... | Graeme B. Davis | 25 Feb |
| • Re: Zip codes... | James Treworgy | 25 Feb |
| • Re: Zip codes... | Robert Crawford | 25 Feb |
