There are 2 repositories under basic-join topic.
The solutions of all the Hackerrank SQL challenges for all easy, medium and hard challenges executed on Oracle environment.
SQL queries (HackerRank solution)
✅ The solutions of SQL challenges for easy, medium and hard challenges on HackerRank executed on MySQL environment compiled with helpful Resources & references related to the challenges.
MySQL solutions to HackerRank's SQL challenges.
HackerRank (Oracle SQL)