To explicitly end the connection between an R session and the Oracle Database instance, invoke the ore.disconnect function. Oracle R Enterprise implicitly invokes ore.disconnect if you do either of the following:
Quit the R session.
Invoke ore.connect while an Oracle R Enterprise connection is already active.
When you disconnect the active connection, Oracle R Enterprise discards all Oracle R Enterprise objects that you have not explicitly saved in an Oracle R Enterprise datastore. For information on saving objects, see "Saving and Managing R Objects in the Database".