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Country & City IDs

PostPosted: Wed Mar 11, 2009 6:15 am
by similar2

In the MySQL format, IDs are specified explicitely. As localization data change over time, I would like to "store" city/country mapping to my records (visits).

However, I face a problem: I can reference a country and/or a city, by it's ID, but what happen if a country disappear or appear (for exemple Croatia appeared few years ago)?

Does each individual city/country keeps their ID ? Or I need to create a built-in mechanism to maintain a city/country database that will track changes over time ?

In short: does ID for a given country or city will be unique over time.

Thanks in advance.

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