Discover how to design and optimize modern databases efficiently using PostgreSQL and MySQL. This book guides you through database design for scalability and performance, covering data modeling, query optimization, and real-world application integration. What this Book will help me do Build efficient and scalable relational database schemas for real-world applications. Master data modeling with normalization and denormalization techniques. Understand query optimization strategies for better database performance. Learn database strategies such as sharding, replication, and backup management. Integrate relational databases with applications and explore future database trends. Author(s) Alkin Tezuysal and Ibrar Ahmed are seasoned database professionals with decades of experience. Alkin specializes in database scalability and performance, while Ibrar brings expertise in database systems and development. Together, they bring a hands-on approach, providing clear and insightful guidance for database professionals. Who is it for? This book is oriented towards software developers, database administrators, and IT professionals looking to enhance their knowledge in database design using PostgreSQL and MySQL. Beginners in database design will find its structured approach approachable. Advanced professionals will appreciate its depth on cutting-edge topics and practical optimizations.