My customer asked me if it was possible to upgrade our 10g database to 11g. Not a problem you should say. However, it’s a client-server system with Oracle Forms 6i on the front-end.
So that is Oracle Net 8 talking to a 11g. They asked around and the only answer they got was “that is not supported”. But they don’t just take “No” for an answer. There is only one answer: “Test, test, test”.
I started with a simple test: an empty import of our application in an 11gR2, some users, some grants and some roles.
So the first connectivity-test is a succes.
Creation of copy of the production database, upgrade and functionality test.
So it’s not supported, but I think I can get it to work.