Why Has Data Mining Struggled So Much?

Bill Inmon has recently posted an article on "Why has Data Mining struggled so much?" The article discusses 7 diferent reasons why data mining has struggled, as it has been…
Uli Bethke November 20, 2009

ODI snippets: Purge Log and shrink space

Get our e-books Discover the Oracle Data Integrator 11g Repository Data Model and Oracle Data Integrator Snippets and Recipes We all know that we should purge the ODI log on…
Uli Bethke November 17, 2009

Comparative Window Functions: Proposed Extensions to Analytic Functions

I promise that this will be the last post on analytic functions this month; but I came across this proposal to extend analytic functions with a comparative window function on…
Uli Bethke November 16, 2009

SQL quiz revisited: ROW_NUMBER, LAST_VALUE, FIRST_VALUE and the SQL knights value problem.

Thank you all for your entries to the recent quiz. The guys from Packt should be shortly sending out the e-books to the winners.Today I will walk you through some…
Uli Bethke November 15, 2009

SQL Quiz: Win two e-books (Essbase & BPEL)

We'll do something completely different today and have a quiz. And you can even win something. Thanks to the guys at Packt Publishing I have two e-books to giveaway. Oracle…
Uli Bethke November 4, 2009

Now offering data mining training courses and a dimensional modelling training module

I am proud to announce a couple of new training courses on data mining, master data management, and dimensional modelling at competitive rates. The data modelling training will cover the…
Uli Bethke October 14, 2009
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