Written by Suresh Regmi With an ever-increasing number of developers attracted towards the file-based embedded database in their development environment, DuckDB has likewise developed its popularity as an embedded OLAP database. Its column-oriented storage approach and vectorized execution makes it one of the quickest one in its category. Otherwise called…

Written by Suresh Regmi Motivation Let me give you a scenario, You have a project with multiple database instances in different environments (Dev, QA, Production) and you need to manage the database schema changes that are done against those environments. Let’s assume that you are managing those changes by creating a git…

Have you ever booted your machine and discovered some left over docker containers? You can easily stop them all with: docker stop `docker ps -a -q` But then, you check again… and they are back up again! That’s probably because they are part of docker-compose deployments with restart: always . …

Cyber Security certificates to jump start your career — written by Nipuna Dilhara If you are reading this article it means you are already interested in cybersecurity. That’s the first symptom of becoming obsessed with this fascinating IT discipline. You might have heard about all these cyber attacks, data breaches, system vulnerabilities at least a few times a week…

Written by Suresh Regmi QuestDB is an open-source Time Series database that uses a column-oriented storage approach and vectored execution for simple and extremely quick query execution. It was developed by QuestDB Limited in 2014. It is written in Java and supports Linux, macOS and Windows as the server operating system. The query…

Written by Nipuna Dilhara SSL 101 Currently, we are in an era of online businesses and for good or bad, we are in a path of becoming an online life form. Meanwhile, cyber crimes and attacks are becoming more of a threat to businesses at each passing day. If you are an…

Magically implementing the Singleton design pattern in python By Asaf Gur, Published 2018–05–30 The Singleton Design Pattern If you have been writing code for a while now, you must have encountered design patterns. The most simple of them is the singleton. From Wikipedia: The singleton pattern is a software design pattern that restricts the instantiation of a class to one object. You…

Recently, more and more websites, servers and tools are starting to adopt http2. What started as SPDY somewhere around 2012, evolved and accepted as http2 around 2015. After some reading about some of the benfits of http2 I decided I have to give it a try. …

Progressive Web Apps are getting a lot of hype these days, and there is a good reason. They offer strong advantages to most types of apps. Having an app on your phone for just about anything, doesn’t make any sense to me.. However, serving apps through a web browser is…