In-Memory DB Recently there has been a lot of activity around in-memory database processing.  Oracle announced in-memory which it is positioning as a direct competitor to HANA [Fn1]; IBM, Microsoft, and others are getting on the "in-memory" bandwagon as well [FN2].  A quick check of Wikipedia indicates there are numerous companies claiming "in-memory" database processing as well [FN3]. Then there is the huge performance difference between Solid State Drives (SSD) and physic [...]