Unwanted local storing of DBase

Hello everybody, i have an app that uses a DBase as Data Source, consisting in 2 simple tables. What i need is that, when app starts (i tried with Live Preview so far), the values in those tables must be the ones I inserted in design mode, regardless if, during app execution, they have been modified by the app itself and stored in phone memory. Is there a way to obtain this?
Thanks in advance.