Teradata stock is falling hard due to guidance here that they may miss revenue targets. Analysts are downgrading the stock… but mostly from Buy to Neutral. Normally stock prices would not be a relevant topic for this blog… but in this case I believe that the Squeeze I suggested first in October of 2012 and…
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 you may have noticed I’m looking at in-memory databases (IMDB) these days… Here are some quick architectural observations on VMWare‘s SQLFire, Oracle’s Exalytics and TimesTen offerings, and SAP HANA. It is worth noting up front that I am looking to see how these products might be used to build a generalized data mart or…
Here are links to several commercial posts on the Experience HANA Blog FYI… The Five Minute Rule and HANA: This is a rehash of my posts here applying the famous Five Minute Rule to in-memory databases. HANA & Exalytics: There is Barely Any Comparison: This is a rehash of my post here pointing out that…
As you look at the enterprise RDBMS marketplace today you will find something shocking… almost every product in the market is built based on designs and concepts that are over thirty years old. IBM’s System R grew into DB2 and influenced Oracle before 1980. Ingres, developed before 1980, became Postgres which became Netezza and Greenplum…
I have promised not to promote HANA heavily on this site… and I will keep that promise. But I want to share something with you about the HANA architecture that is not part of the normal marketing in-memory database (IMDB) message: HANA is parallel from its foundation. What I mean by that is that when…
I found myself wondering where did the rule-of-thumb for Exalytics that suggests that TimesTen can use 800GB of a 1TB memory space… and requires 400GB of that space for work tables leaving room for 400GB of user data… come from (it is quoted everywhere… here is an example… see question #13). Sure enough, this rule…
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