Archive: February 2020

Look to learn and don't think in ink

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Jasper Bogers

The book The Fifth Discipline by Peter M. Senge landed on my doormat recently. I ordered it after hearing Andrew Harmel-Law of ThoughtWorks mention it at the JFokus 2020 conference (article in Dutch). His takeaway was as follows:

"Placed in the same system, people tend to produce the same results".

Once I received the book however, a line at the top of the cover caught my eye:

"In the long run, the only sustainable source of competitive edge is your organization’s ability to learn faster than its competitors"

This statement rings so many bells I’d like to dwell on just that without even going into the book itself. There are two obvious yet often missed clues here that I’d like to share.

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Agile rewrite of an existing system

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Jasper Bogers

The times I’ve worked on a project where the scope is "rebuild the existing implementation, but with new tool / techonology X", I’ve encountered various pitfalls that make these projects much harder than they need to be.

Let me offer some tips on how to deal with them.

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DDD Europe 2020

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Danny Kruitbosch

Last week, on Thursday 6th and Friday 7th of February, I attended DDD Europe 2020 in Amsterdam. In this post I will give a short overview of the talks and workshops I followed and some of my personal takeaways.

I had a great time on the conference. One of the things I like most is the mixture of talks and workshops. In the 2 hour workshops you are expected to actively participate in whatever is happening. Be it discussions or really doing some coding or testing.

I’d like to thank all the speakers and attendees for their input, talks, workshops and discussions during the breaks.

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Kotlin Exposed - aggregate functions

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Christophe Hesters

SQL allows you to do calculations on columns over multiple rows using aggregate functions like COUNT, SUM, AVG etc. This post explains how to use them in Kotlin Exposed. We will also cover arithmetic operations on one or more columns. If you haven’t used Kotlin Exposed before, you can go here for an introduction.

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