The Seventh Edition continues to focus on the hallmark feature of its previous editions: providing a solid grounding in the foundations of database technology and shedding some light on how the field is likely to develop in the future. This comprehensive introduction to databases has been thoroughly revised to reflect the latest developments and advances in the field of database systems. Emphasizing insight and understanding rather than formalism, Chris Date has divided the book into six parts: Basic Concepts, The Relational Model, Database Design, Transaction Management, Further Topics, and Object and Object/Relational Databases. Throughout the book, there are numerous worked examples and exercises for the reader—with selected answers—as well as an extensive set of annotated references. The release of this new edition of An Introduction to Database Systems coincides with the 25th Anniversary of its initial publication.