Mihail C., Java Developer Introduction PostgreSQL is undeniably one of the best DBMSs. It’s open-source and community-driven, which has helped increase its popularity over the years. As of February 2020, PostgreSQL is placed on 4th place by popularity, falling behind only Microsoft SQL Server, MySQL, and Oracle. PostgreSQL has many tools…

Ivan V., PLC Engineer Whether you’re a Software Developer or a PLC Engineer, there’s a common thing between these two — Google Electricity. It surrounds us, and it can be used in thousands of different ways. …

Anna H,. Java Developer Blockchains are very popular now. As the name suggests, blockchain is a chain of blocks. When we say the words “block” and “chain” in this context, we talk about digital information (“block”) stored in a public database (“chain”). A blockchain is a distributed entry, that is…

Victor P., Project Engineer In an IT company, where most of the employees have actual IT experience, still frequently arises the question ‘What is Project Engineering about?’. …

Pavel B., PLC Engineer The Human–Machine Interface is a software that interacts as a communication bridge between the operator and the machine, which provides monitoring the status of software and hardware, collecting data, supervising system and controlling different processes. Engineering technology is living in the world of interconnectivity. …

Oxana D., Java Developer “In order to understand recursion, you must first understand recursion.” Competitive programming is a mind sport that involves solving algorithmic problems related to computer science, math, or logic within some limits or under certain constraints. …

Alex H., PLC Engineer Let’s begin this article with a short note of what is a hologram and what does holography means. If you think that you have never seen a hologram then probably you are wrong, because they are present for example on your credit card and driver’s license…

Dumitru D., Java Developer Have you ever wondered what exactly happens, and what flows should be followed once a customer project extension is requested? What if you’re supposed to be a part of this process? …

Alexandru U., Java Developer The building blocks of an OOP application are classes. Think about it this way: The OOP application is very much like the house you live in. The strength of the house depends on the strength of the foundation on which it is built. The same is…