Recursion Recursion is the technique in which a function calls itself from within its own body.You can find out more about what is recursion and see some examples in various programming languages, a good resource is this one. Common Table Expression It is possible to achieve a recursion within a SQL query.This is possible with … Continue reading Recursive SQL queries
Binary heap is a tree data structure which satisfies the properties of complete binary tree. This means that every level of the tree except the last one should be filled and the nodes are as far left as possible. The two types of heaps are min and max heap. Min heap is when the the … Continue reading Heap and Priority Queue
This is one of the "tips" series.The purpose is to share little pieces of helpful practices and tricks that will make your work better and more pleasant.Take a look at some other tyny tips like: Automate your environment and Use cheat sheets. Do you prefer listening to music while working? If so - what kind of music? … Continue reading Working and music
This is one of the "Tiny tips" series.The purpose is to share little pieces of helpful practices and tricks that will make your work better and more pleasant.Take a look at the other tyny tips like: Automate your environment. Upgrade your working environment by surrounding yourself with easily accessible helpers. Print out some useful (for you) … Continue reading Tiny tips: Use cheat sheets
No matter what technology you are interested in or what area of software development is your favorite one there are always Gurus out there for every topic. And guess what, all of them (or maybe almost all) are writing some kind of articles with the things they know and would like to share. So the … Continue reading 10 software development blogs to follow
https://www.youtube.com/watch?v=SoBDqeRRpLk This is a workshop organized by "Software University" / aka SoftUni / (Sofia, Bulgaria) which took place on 21-st of Jan, 2021. The content which I covered here is about some good practices for software developers, a time management technique, the root OOP principles, SOLID, Composition over Inheritance, Design Patterns and Software Architecture Patterns … Continue reading Workshop: Principles, practices and professionalism in software development (in Bulgarian)
Something small and easy but useful. I always google it when I setup a new Dev environment.If you are also working with Visual Studio and its built in GIT integration, then you have noticed that the remote branches shown under the Branches tree in the Team Explorer, are only increasing. Even some of the branches … Continue reading Visual Studio: Remove deleted branches on GIT fetch
BehaviorSubject example The BehaviorSubject is one of the 4 variants of RxJS Subjects ("a special type of Observable which shares a single execution path among observers"). The BehaviorSubject keeps the last emitted value from the observable object and can be returned to the subscribers. One useful usage of it is to be populated with the … Continue reading Add and update values in BehaviorSubject (Angular)
Photo by Justin Little on Unsplash Recently I experienced a situation where one of the apps I am working on stopped working.There were no new deployments to the server, nor configuration or database-related changes. The symptoms When requesting the web site immediately receive - 500 internal server error. The problem OK, HTTP error code 500 … Continue reading HTTP 500… with no app logs
One way of a quick connection test to a certain Database server can be done by creating a udl file (Microsoft Universal Data Link File). Create a new file with extension .udl (e.g. TestConnection.udl)Open the newly created file: 3. Fill in the data - Choose Provider - Fill the connection settings and click "Test Connection"
Pair Coders 