We are pleased to present this textbook titled “Database Management Systems (DBMS)-I” for the course CS-202-MJ-T offered in Semester III of S.Y.B.Sc. (Computer Science) under the Savitribai Phule Pune University (SPPU) curriculum. This book has been developed in alignment with the NEP CBCS 2025–26 syllabus and aims aims to provide a strong conceptual foundation as well as practical understanding of database systems.

Databases form the backbone of almost every modern software application, and a sound understanding of DBMS concepts is essential for every computer science student. This textbook covers the essential principles, models, and techniques of database systems through a structured and progressive approach. The book emphasizes not only theoretical concepts but also the practical implementation aspects that are crucial for developing realworld applications.

We are thankful to our vibrant publisher Shri Rangrao Patil and all staff of Prasant Publications for their efforts and keen interest in publishing this book in a very limited span of time.

We hope that this textbook will serve as a helpful companion to students and teachers alike in their academic journey, and will encourage learners to think analytically and solve problems effectively using appropriate data structures. We welcome constructive suggestions and feedback from readers to improve future editions of this book.