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Key-value madness

People that write data integration solutions often have a tough job at hand. I can tell because I get to see all the questions and bugs that get reported.

That is the main reason I committed a first collection of 30 examples to the codebase to be included in the next GA release (2.3.1 will be released next Friday, more on that later).

Today I would like to talk about one of the more interesting examples on the de-normaliser step. What the de-normaliser step does is help you out with the lookup of key-value pairs so that you can attribute the value after lookup to a certain field. The step is a fairly recent addition to Pentaho Data Integration, but gets a lot of attention. I guess that’s because the use of a key-value pair system is often used in situations where programmers need a very flexible way of storing data in a relational database.

The …

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Brisbane Users Group - MySQL Hackfest

Last night we had a number of keen souls at the Brisbane MySQL User Group. I was very impressed to see the majority of people with laptops at hand.

You can download my slides and code examples at my Articles page.

In our hands on Hackfest tutorial we created the new command SHOW USERGROUPS. Before anybody makes a comment, it was stated in the presentation that this command was made a dummy one, and is a poor candidate for two reasons.

  1. The results should be more dynamic, rather then hardcoded into the source tree
  2. USERGROUPS is not an ideal name due to comparisions to Users, Groups, Roles etc

Still it was productive, here was the outcome of our work for the evening.

mysql> SHOW USERGROUPS; …
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Brisbane Users Group – MySQL Hackfest

Last night we had a number of keen souls at the Brisbane MySQL User Group . I was very impressed to see the majority of people with laptops at hand.

Brisbane Users Group – MySQL Hackfest

Last night we had a number of keen souls at the Brisbane MySQL User Group . I was very impressed to see the majority of people with laptops at hand.

US Supreme Court to look into Software Patents and Open Source

See this article on InformationWeek.

Looks like an excellent development.
I just hope the EFF has picked the case carefully...

Version 0.1.149 of innotop released

Version 0.1.149 of the innotop MySQL and InnoDB monitor is a major upgrade. As of this version I'm declaring innotop "stable," meaning I've put some work into making it deal with unexpected input. It should be very resistant to any sort of crash now. You can download innotop from the original article.

Pentaho Data Integration Featured on MySQL Web Seminar Series

Orlando FL. ? Pentaho Corp., creator of the world?s most popular open source business intelligence (BI) suite, today announced that it will be presenting on Tuesday, September 19 at 10am PDT as part of MySQL?s popular ongoing educational web seminar series on www.mysql.com. The web seminar will focus on Pentaho Data Integration, formerly the Kettle project, showcasing the world?s most popular open source BI suite in tandem with the world?s most popular open source database platform.

Long Live Turbo

Borland has decided to re-launch their development tools using the old Turbo brand name, perhaps as a precursor to a spin-out of the tools division.  The Turbo brand name was very well known among programmers in the 1980s and early 1990s and Borland stood out in the market for providing the fastest compilers and highest productivity tools with its then unique Integrated Development Environments (IDEs).  As the years went by, the Turbo name fell by the wayside as new products like Borland C++, Delphi and JBuilder raised the stakes for Windows development.  Delphi was a pretty amazing system in its day and it combined the best of Rapid Application Development and native code compiler performance in a way …

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MySQL AB Adds Dana Evan to its Board of Directors

MySQL AB today announced the election of a new independent member to its board of directors: Dana Evan, CFO and executive vice president of Finance and Administration for VeriSign, Inc. (NASDAQ: VRSN).

Build Farm Scripts Available on MySQL Forge

The initial MySQL Build Farm scripts are now available on the Forge wiki. If you are interested in participating in the Build Farm initiative, feel free to download the scripts and trying them out. Right now, we are still working out how the scripts should interact with the main MySQL internal pushbuild system. But, we need folks to set the scripts up on their host computer and provide input on the scripts and test them.

Interested in participating? Enlist your spare machine on the Forge wiki.