Julia conducted a days of learning SQL contest. The start date of the contest was March 01, 2016 and the end date was March 15, 2016. Write a query to print total number of unique hackers who made at ...

Title: Mastering SQL Challenges and Interview Preparation on HackerRank I'm excited to share a major milestone in my SQL journey! 🌟 Over the past few weeks, I've diligently worked through all 58 ...

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.

This SQL challenge on HackerRank really pushed me. At first, I struggled to grasp the core idea—the instructions weren’t very clear and definitely needed more detail.