This short post is intended to provide a quick warning regarding in-memory columnar and cpu requirements… with a longer post to follow. When a row is inserted or bulk-loaded into a DBMS, if there are no indexes, the amount of cpu required is very small. The majority of the time is spent committing a transaction…
I changed the picture to show you the billboard SAP bought on US101N right across from the O HQ… – Rob Larry Ellison announced a new in-memory capability for Oracle 12c last night. There is little solid information available but taken at face value the new feature is significant… very cool… and fairly capable. In…
As I noted here, I think that the IBM BLU Accelerator is a very nice piece of work. Readers of this blog are in the software business where any feature developed by any vendor can be developed in a relatively short period of time by any other vendor… and BLU certainly moves DB2 forward in…
There are three forms of columnar-orientation currently deployed by database systems today. Each builds upon the next. The simplest form uses column-orientation to provide better data compression. The next level of maturity stores columnar data in separate structures to support columnar projection. The most mature implementations support a columnar database engine that performs relational algebra…
This post has been thrown at me a couple of times now… so I’ll now take the time to go through it… and try to address the junk. It starts by suggesting that “the Germans” have started a war… but the next sentence points out that the author tossed grenades at HANA two months before…
This is a rehash of my post for SAP here… I thought you might find it interesting as it describes the architecture HANA uses to support OLTP and BI against a single table. A couple of points to think about: If you have only one database structure you can optimize for only one query; e.g.…
There is still an open question over whether, after the Big Bang, there is enough mass in the Universe to slow the expansion and cause the universe to contract. While the Big Data Bang continues to expand the universe of bits and bytes… I would like to ask whether some of these numbers are overstated?…
The SAP Business guy at Virtustream including EMC Federation
A melting pot for Enterprise Software, Analytics, Food, Sports, Politics and everything else that interests me
database research in the real world
Platform, Database and Storage Topics
Research into current database technology
It is about Architecture... not about Marketing...
