Hello guys,
I'm creating contact backup project, I need the backup to be
incremental, in this case the most important thing the creation/
modification time of a contact.

I checked the contact2.db, it is not giving me this value.

The question is:
How to get the creation/modification time of a contact? if I can't;
then how I can track the changes of a contact?

My idea is like this:
the _ID is incremental, so I can save the highest one that I already
backed up, and later I can query all the contact (Where _ID > ?), but
the only problem that I have is:

What if the user modified a contact, how can I track this change?


Regards

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