Thank you Jonathan, can you please extend your explanation about the > and avoid > commits. How important is to set commit=N in an import? Sorry for this questions, but I asked my boss to giveme a server(a normal 500U$ computer) to run some optimizations test, but he denied, so I can't do as much test as I would like and have to be guessing and asking. -- //www.freelists.org/webpage/oracle-l