Upgrade oracle 10.2.0.3 32bit to oracle 11.1.7 x64

Question

Hi There,
I'm trying to upgrade from oracle 10.2.0.3 to 11.1.7 and I'm wondering what's the best way of doing this.
THe problem is that production server is windows 2003 server 32 bit running oracle 10.2.0.3 standard edition.
The new server is windows 2008 server, 64bit. I have managed to install oracle 11.1.7 on it, so my question is what's teh best approach to do the DB migration? does it matter if the old DB files are in 32bit?
I couldnt find oracle 10.2.0.3 x64 on the oracle site as I was thinking of installing that on the new machine, do cold backup of DB and copy all the files to the new server, startup the DB on the new server, and then run DBUA.
I also managed to install oracle 10.2.0.4 on the new server, is it possible to dpow the foolowing:
1. cold backup the DB on the current production server.
2. move the backup to the new server
3. using 10.2.0.4 executables, do startup mount
4. rename datafiles from old location to new location
5. shutdown immediate
6. startup upgrade
7. run @?/rdbms/admin/catupgrd.sql
would the above work? any concerns? or tips? or any advises please?
Thanks

Answer 1

Mohammed at al, you are not correct - sorry to say that but a 32=>64-bit change will be handled implicitly by the database by invalidating packages etc.
Your way would be:
1) Run utlu111i.sql from your new %OH%\rdbms\admin installation on your "old" 10.2. installation (copy it over and run it from SQL*Plus 10.2)
If you have just an spfile then do a 'create pfile from spfile;' to have an editable copy of your spfile.
2) Shutdown your 10.2. database IMMEDIATE
3) Copy all relevant files (database files, password file, control files, redolog files and spfile/init.or) to your new server into the identical location
- if you plan to choose a different location then you'll have to trace the controlfile before on your old server and create a new controlfile
in the new installation to reflect to the new file locations
4) Create a new service on the new server with: oradim -NEW -SID yoursid -SYSPWD passwrd -STARTMODE a -PFILE initfile
5) Create a new listener service on your new server with "netca"
6) Make all suggested changes from the utlu111i.sql script output to your init.ora.
7) Startup your database in upgrade mode 'startup upgrade'
8) Run 'catupgrd.sql'
9) Once it has been finished then the db will be shutdown - startup normal and run 'utltp.sql' and 'catuppst.sql' in parallel from 2 SQL*Plus sessions
10) Check with 'utlu111s.sql' if everything has been upgraded successfully.
Have fun :-)
Kind regards
Mike