How to use Google Analytics or google API to access user location and store into database

I want to track my site visitors and i think google开发者_如何学C analytics is fulfill my requirement but i want to access complete google analytics from my server how's this possible.

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Look at the API here

http://code.google.com/apis/analytics/docs/gdata/gdataDeveloperGuide.html and http://code.google.com/apis/analytics/docs/gdata/gdataLibraries.html