I've seen some Oracle systems push some big data around and handle pretty high trans per second, but I have never worked on any of these financial systems which

I've seen some Oracle systems push some big data around and handle pretty high trans per second, but I have never worked on any of these financial systems which seem to require more speed and trans per second than any system I have ever built or worked on. Personally I would love to see if Oracle can match these other systems out there, purely from an interest point of view!