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Meetup – Data Vault Interest Group

I reactivated my Meetup Data Vault Interest Group this week. Long time ago I was thinking about a table of fellow regulars to network with other, let’s call them Data Vaulters. It should be a relaxed get-together, no business driven presentation or even worse advertisement for XYZ tool, consulting or any flavor of Data Vault. The feedback of many people was that they want something different to the existing Business Intelligence Meetings. So, here it is!

  • Geschrieben von Dirk Lerner
  • Zugriffe: 4027

How to load easy some data vault test data

Some time ago a customers asked me how to load easy and simple some (test)data into their database XYZ (chose the one of your choice and replace XYZ) to test their new developed Data Vault logistic processes.
The point was: They don’t want to use all this ETL-tool and IT-processes overhead just to some small test in their own environment. If this this is well done from a data governance perspective? Well, that’s not part of this blogpost. Just do this kind of thingis only in your development environment.

  • Geschrieben von Dirk Lerner
  • Zugriffe: 4516

Where did I and where will I speak (2016)

Past, present and future, where did I speak and where will I speak at conferences?

Since my calendar fills up more and more with presentations at conferences I'll give you a summary to keep track on it. Some of them are already confirmed, for others I've submitted my abstracts but yet not confirmed.

  • Geschrieben von Dirk Lerner
  • Zugriffe: 3299
TPC-H benchmark data model

High-performance Data Vault

Over the last few weeks, Mathias Brink and I have worked hard on the topic of Data Vault on EXASOL.

Our (simple) question: How does EXASOL perform with Data Vault?

First, we had to decide what kind of data to run performance tests against in order to get a feeling for the power of this combination. And we decided to use the well-known TPC-H benchmark created by the non-profit organisation TPC.

Second, we built a (simple) Data Vault model and loaded 500 GB of data into the installed model.  And to be honest, it was not the best model. On top of it we built a virtual TPC-H data model to execute the TPC-H SQLs in order to analyse performance.

  • Geschrieben von Dirk Lerner
  • Zugriffe: 8346

Data Modeling Zone Europe 2015

DMZone2015Flyer

Do you want to learn something about data modelling with Steve Hoberman? You want to explore new methods like Data Vault 2.0, Anchor Modeling, Data Design, DMBOK and many more? E.g. a keynote where Dan Linstedt, Lars Rönnbäck and Hans Hultgren talks together, and another one with Bill Inmon?

  • Geschrieben von Dirk Lerner
  • Zugriffe: 4719
  • Conferences
  • Data Architecture
  • Data Modeling
  • Bitemporal Data

    If everything would happen at the same time, there would be no need to store historic data. We, the consumers of data, would know each and everything at the same instant. Beside all the other philosophical impacts, if time wouldn’t exists, is data still necessary?

    (Un)fortunately time exists and data architects, data modelers and developers have to deal with it in the world of information technology.

    In this category about temporal data I will collect all my blogposts about this fancy topic.

  • Secret Spice