Oracle upgrade: whether Apex application will be affect

Hi All,
We plan to upgrade our current DB to a new server and new oracle database( from 10.2.0.1 32bit to 11gR2 64bit) by using export/import.
My question is currently there are many APEX applications running in 10.2.0.1(around 20 Apex applications), and our client may not need to upgrade apex at the same time.
I am not sure whether this upgrade will cause any issues to the Apex applications or what should to be done for Apex before the DB upgrade.
The current version of Apex is 3.2.0.00.27. Any Advices or Documentations is highly appreciated.
Thanks very much for your attention.
Regards
Rachel
Edited by: Pengqi on 26-May-2013 18:26

11gR2 includes Apex version 3.2.1. I have not tried this process, but this should work
1. Install 11gR2 software
2. Create an empty database.
3. Drop any APEX related schemas
4. Perform a full export from 10.2.0.1 and then perform a full import into 11gR2
HTH
Srini

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Oracle upgrade: whether Apex application will be affect

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