check to see if value exists then display different pages based on reply

I have a mysql database set up开发者_StackOverflow中文版, i was wondering if it is possible to check the mysql database for a value (e.g. a username) and then report back if the username exists load one activity, if not load another. all of this done on an android app

Thanks

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Yes, it is definitely possible. You can query the database in your Activity's onCreate or onResume and then call StartActivity passing in different Activity classes based on the results of the query.