On exploring databases on the emulator and available devices:

Many content providers in Android use SQLite databases (http://www.sqlite.org/),

user can use tools provided both by Android and by SQLite to examine the databases.

Many of these tools reside in the \android-sdk-install-directory\tools subdirectory.

One of the tools is a remote shell on the device that allows user to execute a command-line

SQLite tool against a specified database.

Android uses another command-line tool called Android Debug Bridge (adb), which is

available as " tools\adb.exe "