false http://photo.goodreads.com/books/1172657589m/204027.jpg 204027 1 <p><br>Temporal database systems are systems that provide special support for storing, querying, and updating historical and/or future data. Current DBMSs provide essentially no temporal features at all, but this situation is likely to change soon for a variety of reasons; in fact, temporal databases are virtually certain to become important sooner rather than later, in the commercial world as well as in academia. This book provides an in-depth description of the foundations and principles on which those temporal DBMSs will be built. These foundations and principles are firmly rooted in the relational model of data; thus, they represent an evolutionary step, not a revolutionary one, and they will stand the test of time.<br><br>This book is arranged in three parts and a set of appendixes:<br><br>* Preliminaries: Provides a detailed review of the relational model, and an overview of the Tutorial D language.<br>* Laying the Foundations: Explains basic temporal data problems and introduces fundamental constructs and operators for addressing those problems.<br>* Building on the Foundations: Applies the material of the previous part to issues of temporal database design, temporal constraints, temporal query and update, and much more.<br>* Appendixes: Include annotated references and bibliography, implementation considerations, and other topics.<br><br>Key features:<br><br>* Describes a truly relational approach to the temporal data problem.<br>* Addresses implementation as well as model issues.<br>* Covers recent research on new database design techniques, a new normal form, new relational operators, new update operators, a new approach to the problem of "granularity," support for "cyclic point types," and other matters.<br>* Includes review questions and exercises in every chapter.<br>* Suitable for both reference and tutorial purposes. 197421 19 11 2002 Temporal Data & the Relational Model (The Morgan Kaufmann Series in Data Management Systems) total:1|5:1| 1 5 4 0 0 0 false false Thu Nov 19 01:40:56 -0800 2009 Thu Nov 19 01:40:56 -0800 2009 0 0 false false Thu Aug 13 05:00:40 -0700 2009 Thu Aug 13 05:00:40 -0700 2009 5 0 false false Mon Jan 01 00:00:00 -0800 2007 Sun Feb 22 11:02:39 -0800 2009 Sun Feb 22 11:02:45 -0800 2009 0 0 false false Sat Aug 04 16:57:01 -0700 2007 Sat Aug 04 16:57:01 -0700 2007 http://www.goodreads.com/book_link/follow/8?book_id=204027