Relational Algebra

Relational Algebra is an independent study app for building confidence with database theory, query logic, and formal operations through focused practice. Designed for students, self-learners, interview preparation, and anyone reviewing database fundamentals, the app includes 160 questions across Fundamentals, Practical Skills, Common Pitfalls, and Advanced Concepts. - FSRS spaced-repetition intervals to help you review at the right time - Weak-point heatmap to show topics that need more attention - Daily challenge for consistent practice - Mock exams for timed review sessions - Every question includes an explanation - Offline practice with no login required Use it to practice selection, projection, joins, set operations, division, equivalence, query transformation, and common reasoning mistakes. Independent study app for Relational Algebra practice. Not affiliated with, endorsed by, or sponsored by any company, certification body, exam operator, or vendor. All trademarks belong to their respective owners. Practice offline, no login required.