If you found this repository helpful in discovering new opportunities, don’t keep it to yourself — share it with your friends or batchmates so they can benefit too! You can also connect with me on ...

Ethical hacking has become one of the most in-demand cybersecurity careers in 2026. As cyber threats continue to evolve, organizations need skilled professionals who can identify vulnerabilities ...

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 ...

LeetCode focuses mainly on algorithms, while data science requires skills like SQL, statistics, and working with real data. Different platforms offer various ways to prepare, from building portfolios ...

Taking up the HackerRank SQL certification has been a transformative experience that has helped me navigate the complexities of data analysis and shaped my SQL skills. I'll discuss my own path in this ...

This page contains solutions for all HackerRank Java challenges which were passed successfully. There can be multiple ways of approaching solution to any problem. Please find the provided solutions ...

Here are the 2 questions asked in HackerRank SQL Intermediate Certification Exam, these 2 will be available in one attempt. The questions asked are Invoices Per Country and Product Sales Per City.

Here are the 4 questions asked in HackerRank SQL Basic Certification Exam, from these 2 will be available in one attempt. SELECT ei.employee_ID, ei.name FROM employee_information ei JOIN ...