files *. DB after new version Release?

Hello
So, for my purposes, the location to store the db database file is in (. / data / XXX.db) which is the same as QDir::homepath () / XXX.db.

So, my question is, I plan to release a new build and when a person updates the application, will be content to *.db file in the data directory (or current db file is located) is overwritten, deleted, and then created again after the upgrade process or the new version of update uses the old *.db file (desired result because don't want people lose data there)?
In addition, what is the path to store the db file, even if the application is removed? can use this feature to backup/restore data files.

In addition, any way I can test it? If I test on the device, it creates another instance of the application with a different version.

Thank you
S.

data remains intact on an update of the application.
This means that if you change your database, you must take control of version into account and modify accordingly the existing data bases.

Tags: BlackBerry Developers

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