The Squeeze Hits Teradata

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…

Oracle 12c IMDB Announcement at OOW13

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…

SQLFire, Exalytics, TimesTen, and HANA… a quick comparison

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…

30+ Year Old Database Architecture: DB2, Oracle, Postgres, Teradata, Sybase, and More…

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…

More on Exalytics Capacity…

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…

Exalytics vs. HANA: What are they thinking?

I’ve been trying to sort through the noise around Exalytics and see if there are any conclusions to be drawn from the architecture. But this post is more about the noise. The vast majority of the articles I’ve read posted by industry analysts suggest that Exalytics is Oracle‘s answer to SAP‘s HANA. See: PCWorld InfoWorld…