SQL – NULL-safe equals operator
<=> is the NULL-safe equals operator SELECT * FROM reports WHERE NOT driver <=> user_id
15 Steps for successful Bootstrapping – Part 2
This is part 2 of the 5 part series 15 Steps for successful Bootstrapping Time to Cash – When do I get my money? More important than “time to market” (when can I offer my product on the market) is “time to cash”: when do I get the money for my service? For a successful…
10 things I didn’t know about Data Science a year ago
In my article My personal road map for learning data science in 2018 I wrote about how I try to tackle the data science knowledge sphere. Due to the fact that 2018 is slowly coming to an end I think it is time for a little wrap up. What are the things I learned about…
The Agile Manifesto
When you are working in an agile team e.g. Scrum you might have heard about the agile manifesto. Formulated in 2001 it influenced a lot of software developers and methodologies like Scrum. The Agile Manifesto consists of 4 values and 12 principles: Values Principles Our highest priority is to satisfy the customer through early and…
Moving Motivators
An interesting technique from the Management 3.0 book “Managing for happiness” is the moving motivators exercise. What are the benefits of this exercise? It raises self-awareness about what motivates you, say what makes you get up in the morning. You can figure out what is important to your colleagues and support them in those areas.…
What is Big Data
Big Data is a buzz word nowadays. But when is data “big data”? Three Vs of Big Data Big data spans three dimensions Volume Velocity Variety Volume Everything which doesn’t fit on your local hard drive anymore can be considered big. Think >10 TeraByte Velocity The more real time your data becomes the more you…
Kudo Cards
What is Kudo? Kudo is Greek for fame or honor. The idea behind Kudo Cards is to say “Thank You” in a meaningful way. By taking the time to specify and write down what you are actually grateful for. Variations As an alternative to just give a card to a co-worker, you can enhance the…
Distributing your own package on PyPi
In Regular Expressions Demystified I developed a little python package and distributed it via PyPi. I wanted to publish my second self-written package as well, but coming back after almost a year, some things have changed in the world of PyPi, i.e. the old tutorials aren’t working anymore. So I wrote this article to bring…
My Barcamp History
I became a bar camp afficionade after I attendend the Software Engineering Camp in 2016 2025 SpaceUp Camp Würzburg – klein aber fein! Seneca SWEC 2024 Seneca Barcamp Software Engineering Camp 2024 2023 BarCamp Regensburg Seneca BarCamp Nürnberg Digital Festival Creator’s BarCamp 2022 Meetup Let’s talk about Web Security! BarCamp Regensburg 2022 DevOps Camp 2022…