Data Out of Oracle

We are running Oracle 7.2 with procedural option. On a dec alpha - if that is relevant.
I need to write out a record for delete, insert and update to send back to our mainframe to update our IMS database there. I am planning on writing triggers to capture this action. My question is how to get the data out of Oracle. Ideally I would like to do this periodically (i.e. write out everything prior to a point in time). If the trigger could write out sequentially that would work too. Can PL/SQL write out a sequential file? We're at 2.2.2.3 on that. I'm thinking that it can't. Can a newer version? Is there a sqlloader type unload?
If I exported a table - could I do something with that (i.e. is it readable)? What options do I have?

TIA - Barb. Received on Tue Sep 17 1996 - 00:00:00 CEST