View Updating and Relational Theory

Views are a key part of database technology, but they're often considered read-only. In this book, Chris Date-a leading expert in relational databases-offers practical techniques that allow you to update the views that a database presents to you. Views are "virtual tables" that have difficulty synchronizing with the actual tables behind the views. It's so difficult, in fact, that many SQL products actually prohibit updating. You'll learn the theory that determines how and when it's possible to update these views. This book is a perfect follow-up to Chris's other recent books, Database Design and Relational Theory and SQL and Relational Theory, 2nd Edition.