SQL Mastery: Practical SQL Development and Performance Optimization

Prem Mohan Tyagi

Apr 2026 · Authors Click Publishing

About this ebook

SQL Mastery is your definitive guide to the world’s most essential data language. Whether you’re writing your first query or optimizing enterprise-scale databases, this book transforms how you think about and work with data. You’ll move from foundational SELECT statements to advanced analytical patterns used in real-world production systems. Learn joins, window functions, and CTEs. Design schemas that scale. Optimize queries from minutes to milliseconds. Understand how databases execute queries, how optimizers make decisions, and how small design choices impact performance at scale. But this isn’t just a syntax reference. SQL Mastery teaches you to think in SQL to see data problems clearly and design efficient, elegant solutions. You’ll understand not only what to write, but why it works and how it performs in production environments. Packed with practical examples, performance insights, and real-world scenarios, this book is built for professionals who want to move beyond writing SQL to truly mastering it. Perfect for developers, analysts, data engineers, DBAs, architects, DevOps professionals, and anyone serious about working with data.

Ratings and reviews

A very practical and well-structured book for learning SQL development and performance optimization. The explanations are clear, and the real-world examples make complex concepts easier to understand. I especially liked the focus on query optimization and best practices. A few sections could be more detailed for beginners, but overall it’s an excellent resource for developers looking to strengthen their SQL skills.

The book offers a wonderful learning experience with strong fundamentals and easy-to-understand concepts. The author explains the ideas in simple language, which makes the book clear and engaging for readers. The writing style is straightforward yet effective, helping learners grasp the subject easily. Overall, it is a great book for learners and beginners.

SQL Mastery: Practical SQL Development and Performance Optimization" is a well-structured and practical guide for developers looking to strengthen their SQL skills. The book covers essential concepts, real-world query optimization techniques, and performance tuning strategies in an easy-to-understand manner.

About the author

Prem Mohan Tyagi is a technologist, architect, and Full-Stack Software Developer with hands-on experience in software development and database engineering since 2005. Over the years, he has worked across diverse domains including healthcare, fintech, revenue cycle management (RCM), SaaS platforms, and cloud-native ecosystems designing and delivering scalable, secure, and high-performance data-driven systems deployed in real-world production environments.