Don't know what Google does, but here you can see the table structure
for Geonames:
http://forum.geonames.org/gforum/posts/list/80.page


On 26 Nov., 16:18, Drozzy <[EMAIL PROTECTED]> wrote:
> In the recent project I worked on I had to design a database model for
> storing locations of some stores.
> I was wandering if the approach I came up with is anything resembling
> how Google would store these things for their own use? My model is not
> perfect, and it is very tedious to work with creating new (partial)
> locations, but the searching is great.
>
> Because I am using the ORM I will represent database models with
> classes. So the structure I came up with is as follows:
>
> Location Class:
>   Latitude, Longitute
>   ZIP FK
>   City Nickname FK
>
> ZIP Class:
>   Code
>   Country FK
>
> City Nickname Class:
>    Name
>    City FK
>
> City Class:
>    Name
>    State FK
>
> State Class
>   Name
>   Country FK
>
> Country Class
>    Name
> ZIP -> Country
>
> I keep thinking about this, even though it is already done... Believe
> it or now I even dreamt about it. Any comments?
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