title: create an alert for the date and time stored into sqlite
body: <p>I made a todo list where through a datepicker dialog fragment and a fragment timepickerdialog have the possibility to set the date and time and store them in a sqlite database together with the related notes. Now I would like to have the ability to set alerts for date and time when I click in a button image. How should I proceed? My main interest is to understand how to set the alarm so that it fires depending on the date or time stored in the sqlite db. I accept any advice. If anyone is interested I can send the code.</p>