Thinking about getting into coding or leveling up your skills? You’ve probably heard of HackerRank. It’s a big name in the tech world for practice and hiring. But the big question on a lot of people’s ...

Learning SQL is a great move for anyone working with data, but actually getting good at it can feel tricky, especially if you don’t have a database handy. Luckily, there are tons of free places online ...

In this repository, we have SQL problems for practice from beginner level to advanced level using a fictitious database 'Worldwide importers'. I learned SQL under Udacity Introduction to Data Science ...

I learned SQL under Udacity Introduction to Data Science nanodegree program. I also used Hackerrank to practice the queries i learned.

Seeking sports excellence? Follow the example of elite performers. Expert athletic skill isn’t something you’re born with and doesn’t randomly happen. The expertise of athletes—as well as singers, ...