I want to upgrade our DB from 9.2.0.4 to 9.2.0.7. Since the 9.2.0.7 patchset does NOT cover the latest CPU a.k.a Critical Patch Upgrade) in Oct.2005 and Jan.2006, I will have to apply all of them. There are 2 ways to follow:

1. Upgrade software level 9.2.0.7 and CPUJan together and then upgrade databases;
2. Upgrade software for 9.2.0.7 and upgrade databases; then apply patch CPUJan and post-installation work on databases.

I personally like to Option 1 since it will save me time. But I don't have document to back it up. I have tried to search the documents on Metalink. But I found nothing so far.

Have anyone here done the above work or found any related documents?