To practice SQL, you could always start by installing MySQL on your local machine, creating a database with a few tables and then trying out different queries on your tables. However, the best ...

Getting good at SQL for interviews can feel like a puzzle. You know the basics, but putting them together in a way that impresses people is another thing entirely. Luckily, there are great tools out ...

HackerRank is a tech company that focuses on competitive programming challenges for both consumers and businesses, where developers compete by trying to program according to provided specifications.