Integrating with an external Database involves data copy?

Hi, I need to integrate with an external Oracle DB (not the DB Mendix is using). When I integrate with this external DB, will Mendix start fetching the data directly from the Oracle DB or will it copy the data to its database and then use it? Either way is fine, as I don't have that much data in the Oracle DB.
1 answers

You can do both, the actual connection needs to be custom-made anyway. You could then import all the data, or query for it each time and put the data in transient objects.