Unload to Another Instance
When you unload a database with the Destination Directory and/or Source Directory options specified in the Generate unload.ing and reload.ing dialog, direct where the data is copied to and from. This can be on the same machine or a different machine.
When you run the unload command file, the copy.out script is executed. The copy.out script generates the data files in the destination directory. If you have specified a source directory, you must move the copy.in script and the data files to this directory. When you run the copy.in script, the user objects are created and the tables are populated with the data from the source directory.