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”?
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…
Keyboard shortcuts for signals in the macOS terminal
When working with a terminal / console in unixoid systems like Linux or macOS you may have encountered a command like CTRL + C to terminate a running process. There are a few more: Signal Control character SIGINT CTRL + C SIGTSTP CTRL + Z SIGINFO CTRL + T