SQL & Databases

This assessment is designed to rigorously evaluate your proficiency in the core concepts of SQL and relational databases. It simulates real-world interview scenarios, technical screening tests, and query-debugging challenges used by data, backend, and analytics teams at top technology companies.

By completing this module, you will gain deep insights into your current skill level, identify your strongest areas, and pinpoint exactly which querying, joining, aggregation, indexing, or transaction concepts you need to review before your upcoming technical interviews.