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 ...

Description : Warm welcome to everyone!! I decided to add all my solutions for SQL problems in Hackerrank platform. Feel free to arise PR.Thanks in advance :) There ...

These solutions are my own work and were created for educational purposes on HackerRank. They may not be the most optimal solutions, but they passed HackerRank’s test cases.

If you’re looking to sharpen your coding skills, HackerRank is an excellent platform to explore. It provides a variety of coding challenges that can help you think critically and solve problems more ...

Student Advisor is one of the five questions in the HackerRank SQL (Basic) certification test. It looks like a copy of the other join questions, but it has two salary limits, one for each gender, and ...

Profitable Stocks is one of the five questions in the HackerRank SQL (Basic) certification test. It is short. The two things to get right are the comparison and the sort. There is one table of today’s ...