All of your questions are more or less answered in the documentation. I recommend that you study it first, and then come back with any further questions.
http://docs.formtools.org/userdoc2_1/ind...page=index
Dropdown lists and the values that gets stored is addressed in the documentation under "Option Lists" http://docs.formtools.org/userdoc2_1/?pa...ion_groups
All you need to know about using a form with the database is also covered (of course) in the documentation: http://docs.formtools.org/userdoc2_1/?pa...management
http://docs.formtools.org/userdoc2_1/ind...page=index
Dropdown lists and the values that gets stored is addressed in the documentation under "Option Lists" http://docs.formtools.org/userdoc2_1/?pa...ion_groups
All you need to know about using a form with the database is also covered (of course) in the documentation: http://docs.formtools.org/userdoc2_1/?pa...management