Please Help with these ORACLE 7.1 (NT) questions

I would extremely appreciate help with the following:

1. How can I get the DDL for the objects I created in the DB? I want to save the SQL commands for every change I made to the DB objects. Can't figure out to get the SQL for those.
2. We are planning a move to the v7.3 and don't know how to move the database over from 7.1. Any help would be appreciate.

regards,
--nasir (nnoor_at_cris.com) Received on Thu Apr 24 1997 - 00:00:00 CDT