Rob Janssen

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10 SQL Tricks That You Didn’t Think Were Possible

Listicles like these do work – not only do they attract attention, if the content is also valuable (and in this case it is, trust me), the article format can be extremely entertaining. This article will bring you 10 SQL tricks that many of you might not have thought were possible.

Generating Sessions Ids · Code Ahoy

Session Identifiers are a bit like Social Security numbers for the web. Session Identifiers (aka Session Ids or Session Tokens) are unique identifiers that are given to users when they log in. All subsequent requests from users has this Session Id that allows the server look up and identify users.

Why composition is superior to inheritance as a way of sharing code

Inheritance is one of the pillars of Object-oriented programming (OOP), the other two being polymorphism and encapsulation. Inheritance is therefore centre stage whenever OOP is discussed. There are several flavours of inheritance however.

Apache Storm

Why use Storm? Apache Storm is a free and open source distributed realtime computation system. Storm makes it easy to reliably process unbounded streams of data, doing for realtime processing what Hadoop did for batch processing.

compressivestrength.pdf

An Overview of Conversational UI

Is computer software ready to be controlled by speech? For decades, we’ve been building software with graphical user interfaces, allowing users to select, point, and click their way through applications.

Technology Blog

Pre-Mortem: Working Backwards in Software DesignPre-Mortem: Working Backwards in Software DesignImagine a project failed, and start from there.

What I learned from programming a database

It’s been 3 months since I finished an 18-month stint on the core development team at InfluxDB, a great team dedicated to building a great time-series database. Programming a database was fascinating work.

How an internet mapping glitch turned a random Kansas farm into a digital hell

An hour’s drive from Wichita, Kansas, in a little town called Potwin, there is a 360-acre piece of land with a very big problem. The plot has been owned by the Vogelman family for more than a hundred years, though the current owner, Joyce Taylor née Vogelman, 82, now rents it out.

Give it five minutes

A few years ago I used to be a hothead. Whenever anyone said anything, I’d think of a way to disagree. I’d push back hard if something didn’t fit my world-view. It’s like I had to be first with an opinion – as if being first meant something.

This Read-It-Later-list is just that, bookmarks of stuff I intend to read or have read. I do not necessarily agree with opinions or statements in the bookmarked articles.

This list is compiled from my Pocket list.