migrating from 8.1.7 to 9i how to keep same user_id

I've got hundreds of user_ids used in dozens of tables and we use the USER_ID as part of our application security and audit trail. I was in the habit of just moving the PWD.ORA file into a new database when both were 8.1.7 Will this work with different versions? If I migrate to 9i or 10G how can I keep the same user_id without haveing to go through a massive conversion of millions of records? Received on Fri Jun 17 2005 - 09:31:22 CDT