Hello everybody,
I'm in the same situation.
The Upgrade guide has this prerequisites:
Prerequisites:
In the following special cases you need to obtain more information:
—If you are upgrading from Oracle 10.2 to Oracle Database 11g Release 2 (11.2) in manual mode (in this guide we only describe the database upgrade using the DBUA)
—If the source database runs Oracle 10.2 with patch set lower than 10.2.0.5, you need to first upgrade the source database to at least patch set 10.2.0.5.
I've to clarify that this are the prerequisite for UNIX upgrade, I don't know for Windows if its different.
Any information is welcome!
Junior.