now available! A detailed study of the impact of objects and type theory on the relational model of data, including a comprehensive proposal for type inheritance This is the first attempt to describe what object/relational means. If youre interested in object/relational technology, this is the book to read. - Rick van der Lans Independent consultant, author of Introduction to SQL, and past member of the Dutch committee responsible for developing the International SQL Standard This book is an excellent piece of work. It is very rare in computer science to come across a book that provides such a complete and precise theory that is systematically presented and compared to all of the other work in the area. Even those who find the conclusions controversial will admire this thoroughness. - Rick Cattell ODMG Chair, author of Object Data Management and JDBC Database Access with Java, and co-editor of the Object Database Standard: ODMG 2.0 Foundation for Object/Relational Databases: The Third Manifesto is a proposal for the future direction of data and database management systems (DBMSs). It consists of a precise, formal definition of an abstract model of data, to be considered as a bl

About the Author:

C. J. Date is an independent author, lecturer, researcher, and consultant specializing in relational database systems, a field he helped pioneer. Among other projects, he was involved in technical planning for the IBM products SQL/DS and DB2. He is best known for his books, in particular, An Introduction to Database Systems (7th edition, Addison-Wesley, 2000), the standard text in the field, which has sold well over half a million copies worldwide. Mr. Date is widely acknowledged for his ability to explain complex technical material in a clear and understandable fashion.

Hugh Darwen has been involved in software development since 1967 as an employee of IBM United Kingdom, Ltd. He has been active in the relational database arena since 1978. He was one of the chief architects and developers of an IBM relational product called Business System 12, a product that faithfully embraced the principles of the relational model. He has been an active participant in the development of SQL international standards since 1988.

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