Having had the misfortune to once be a Oracle DBA I can definitely confirm this is Oracle true-to-form. It amazes me how many times Oracle departs from Larry Ellison's "Unbreakable" hype. What I remember about Oracle is they would send out eye-wateringly huge patches with massive prerequisites and complications that would happily slaughter Oracle Applications and databases if you got any part of it wrong. I also seem to remember that Oracle would also slip in missing functionality to applications in to patches and bury the details in the small print. They are an absolutely reprehensible company dealing databases and shoddy applications - they make Microsoft look like the high watermark of professionalism and consistency in terms of patching and maintenance. The misery Ellison's "wretched hive of scum and villainy" has caused me would fill several books.