Microsoft announced today that it is buying privately held data warehouse appliance vendor DATAllegro. This is big news, for a number of reasons.
- The MPP-versus-shared-everything argument for data warehouse DBMS is over. MPP (Massively Parallel Processing) has won.
- Oracle, the only remaining holdout on the shared-everything side, will have to capitulate soon, presumably via an acquisition of its own.
- For the first time ever, Microsoft has leapfrogged Oracle at the very high end of database management.
- Now that new technologies are unquestionably winning, data warehousing will become a lot cheaper, and new kinds of analytic endeavors will become affordable.
- Among the new data warehouse technologies, row-based approaches are holding their own versus columnar, at least in Microsoft's eyes.
- We're about to learn how good Microsoft server technologies are at scale-out.