Practical SQL queries are central to data analysis, including selecting films, finding special features, listing active customers, and more.

Problem solved-5 I took the HackerRank test on 10/11/2023. The certificate can be viewed here 2 Questions are asked, as of now 2 questions will be asked from these questions, provided the solution ...

The Student Analysis SQL problem is a question presented in the HackerRank Basic SQL Certification exam. This is one question solution to the HackerRank SQL Basic Certification problem and this is ...

This repository contains solutions to Hackerrank practice problems with SQL. Take a look, play and have fun with this. Stars are welcome · Report a bug · Request a feature ...

Here are the 4 questions asked in HackerRank SQL Basic Certification Exam, from these 2 will be available in one attempt. Student analysis SQL… ...

Computer science educators seek to understand the types of mistakes that students make when learning a new (programming) language so that they can help students avoid those mistakes in the future.

We present an analysis of mistakes that students made when first working with SQL, classify the types of errors introduced, and provide suggestions on how to avoid them going forward. In addition, we ...