Temporal Data The Relational Model

Author : C.J. Date
Publisher : Morgan Kaufmann
ISBN 13 : 1558608559
Total Pages : 449 pages
Book Rating : 4.59/5 ( download)

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Download or read book Temporal Data & the Relational Model written by C.J. Date and published by Morgan Kaufmann. This book was released on 2003 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review of relational concepts -- An overview of Tutorial D -- Time and the database -- What is the problem? -- Intervals -- Operators on intervals -- The EXPAND and COLLAPSE operators -- The PACK and UNPACK operators -- Generalizing the relational operators -- Database design -- Integrity constraints 1 : candidate keys and related constraints -- Integrity constraints 2 : general constraints -- Database queries -- Database updates -- Stated times and logged times -- Point and interval types revisited.

Author : C.J. Date
Publisher : Morgan Kaufmann
ISBN 13 : 0128006757
Total Pages : 579 pages
Book Rating : 4.57/5 ( download)

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Download or read book Time and Relational Theory written by C.J. Date and published by Morgan Kaufmann. This book was released on 2014-08-13 with total page 579 pages. Available in PDF, EPUB and Kindle. Book excerpt: Time and Relational Theory provides an in-depth description of temporal database systems, which provide special facilities for storing, querying, and updating historical and future data. Traditionally, database management systems provide little or no special support for temporal data at all. This situation is changing because: Cheap storage enables retention of large volumes of historical data in data warehouses Users are now faced with temporal data problems, and need solutions Temporal features have recently been incorporated into the SQL standard, and vendors have begun to add temporal support to their DBMS products Based on the groundbreaking text Temporal Data & the Relational Model (Morgan Kaufmann, 2002) and new research led by the authors, Time and Relational Theory is the only book to offer a complete overview of the functionality of a temporal DBMS. Expert authors Nikos Lorentzos, Hugh Darwen, and Chris Date describe an approach to temporal database management that is firmly rooted in classical relational theory and will stand the test of time. This book covers the SQL:2011 temporal extensions in depth and identifies and discusses the temporal functionality still missing from SQL. Understand how the relational model provides an ideal basis for taming the complexities of temporal databases Learn how to analyze and evaluate commercial temporal products with this timely and important information Be able to use sound principles in designing and using temporal databases Understand the temporal support recently added to SQL with coverage of the new SQL features in this unique, accurate, and authoritative reference Appreciate the benefits of a truly relational approach to the problem with this clear, user friendly presentation

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.02/5 ( download)

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Download or read book Temporal Data and the Relational Model written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : C. J. Date
Publisher :
ISBN 13 : 9788131201763
Total Pages : 422 pages
Book Rating : 4.67/5 ( download)

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Download or read book Temporal Data Relational Model written by C. J. Date and published by . This book was released on 2005 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Tom Johnston
Publisher : Newnes
ISBN 13 : 0124080553
Total Pages : 400 pages
Book Rating : 4.53/5 ( download)

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Download or read book Bitemporal Data written by Tom Johnston and published by Newnes. This book was released on 2014-08-19 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bitemporal data has always been important. But it was not until 2011 that the ISO released a SQL standard that supported it. Currently, among major DBMS vendors, Oracle, IBM and Teradata now provide at least some bitemporal functionality in their flagship products. But to use these products effectively, someone in your IT organization needs to know more than how to code bitemporal SQL statements. Perhaps, in your organization, that person is you. To correctly interpret business requests for temporal data, to correctly specify requirements to your IT development staff, and to correctly design bitemporal databases and applications, someone in your enterprise needs a deep understanding of both the theory and the practice of managing bitemporal data. Someone also needs to understand what the future may bring in the way of additional temporal functionality, so their enterprise can plan for it. Perhaps, in your organization, that person is you. This is the book that will show the do-it-yourself IT professional how to design and build bitemporal databases and how to write bitemporal transactions and queries, and will show those who will direct the use of vendor-provided bitemporal DBMSs exactly what is going on "under the covers" of that software. Explains the business value of bitemporal data in terms of the information that can be provided by bitemporal tables and not by any other form of temporal data, including history tables, version tables, snapshot tables, or slowly-changing dimensions Provides an integrated account of the mathematics, logic, ontology and semantics of relational theory and relational databases, in terms of which current relational theory and practice can be seen as unnecessarily constrained to the management of nontemporal and incompletely temporal data Explains how bitemporal tables can provide the time-variance and nonvolatility hitherto lacking in Inmon historical data warehouses Explains how bitemporal dimensions can replace slowly-changing dimensions in Kimball star schemas, and why they should do so Describes several extensions to the current theory and practice of bitemporal data, including the use of episodes, "whenever" temporal transactions and queries, and future transaction time Points out a basic error in the ISO’s bitemporal SQL standard, and warns practitioners against the use of that faulty functionality. Recommends six extensions to the ISO standard which will increase the business value of bitemporal data Points towards a tritemporal future for bitemporal data, in which an Aristotelian ontology and a speech-act semantics support the direct management of the statements inscribed in the rows of relational tables, and add the ability to track the provenance of database content to existing bitemporal databases This book also provides the background needed to become a business ontologist, and explains why an IT data management person, deeply familiar with corporate databases, is best suited to play that role. Perhaps, in your organization, that person is you

Author : Richard T. Snodgrass
Publisher : Morgan Kaufmann
ISBN 13 :
Total Pages : 538 pages
Book Rating : 4.24/5 ( download)

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Download or read book Developing Time-oriented Database Applications in SQL written by Richard T. Snodgrass and published by Morgan Kaufmann. This book was released on 2000 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: Whether you're a database designer, programmer, analyst, or manager, you've probably encountered some of the challenges-and experienced some of the frustrations-associated with time-varying data. Where do you turn to fix the problem and see that it doesn't happen again? In Developing Time-Oriented Database Applications in SQL, a leading SQL researcher teaches you effective techniques for designing and building database applications that must integrate past and current data. Written to meet a pervasive, enduring need, this book will be indispensible if you happen to be part of the flurry of activity leading up to Y2K. The enclosed CD-ROM contains all of the code fragments-implemented for Oracle8 Server, IBM DB2 Universal Database, Microsoft SQL Server, and other systems-and evaluation copies of the programs discussed in the book. * Offers incisive advice on recording temporal data using SQL data types, defining appropriate integrity constraints, updating temporal tables, and querying temporal tables with interactive and embedded SQL. * Provides case studies detailing real-world problems and solutions in areas such as event data, state-based data, partitioned data, and audit logs. * Contains over 400 code fragments with detailed explanations.

Author : Mark Levene
Publisher : Springer Science & Business Media
ISBN 13 : 0857293494
Total Pages : 632 pages
Book Rating : 4.97/5 ( download)

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Download or read book A Guided Tour of Relational Databases and Beyond written by Mark Levene and published by Springer Science & Business Media. This book was released on 2012-09-18 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: Addressing important extensions of the relational database model, including deductive, temporal, and object-oriented databases, this book provides an overview of database modeling with the Entity-Relationship (ER) model and the relational model. The book focuses on the primary achievements in relational database theory, including query languages, integrity constraints, database design, computable queries, and concurrency control. This reference will shed light on the ideas underlying relational database systems and the problems that confront database designers and researchers.

Author : Tom Johnston
Publisher : Morgan Kaufmann
ISBN 13 : 0080963374
Total Pages : 502 pages
Book Rating : 4.72/5 ( download)

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Download or read book Managing Time in Relational Databases written by Tom Johnston and published by Morgan Kaufmann. This book was released on 2010-08-19 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: Managing Time in Relational Databases: How to Design, Update and Query Temporal Data introduces basic concepts that will enable businesses to develop their own framework for managing temporal data. It discusses the management of uni-temporal and bi-temporal data in relational databases, so that they can be seamlessly accessed together with current data; the encapsulation of temporal data structures and processes; ways to implement temporal data management as an enterprise solution; and the internalization of pipeline datasets. The book is organized into three parts. Part 1 traces the history of temporal data management and presents a taxonomy of bi-temporal data management methods. Part 2 provides an introduction to Asserted Versioning, covering the origins of Asserted Versioning; core concepts of Asserted Versioning; the schema common to all asserted version tables, as well as the various diagrams and notations used in the rest of the book; and how the basic scenario works when the target of that activity is an asserted version table. Part 3 deals with designing, maintaining, and querying asserted version databases. It discusses the design of Asserted Versioning databases; temporal transactions; deferred assertions and other pipeline datasets; Allen relationships; and optimizing Asserted Versioning databases. Integrates an enterprise-wide viewpoint with a strong conceptual model of temporal data management allowing for realistic implementation of database application development. Provides a true practical guide to the different possible methods of time-oriented databases with techniques of using existing funtionality to solve real world problems within an enterprise data architecture environment. Written by IT professionals for IT professionals, this book employs a heavily example-driven approach which reinforces learning by showing the results of puting the techniques discussed into practice.

Author : C. J Date
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.43/5 ( download)

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Download or read book Temporal Data and Relational Theory written by C. J Date and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "The plummeting cost of storage and the widespread adoption of data warehouse technology have led to an increasing interest in temporal databases. As a consequence, the ability to deal properly with the time dimension in databases has become an increasingly important practical problem. This video seminar describes and explains the theoretical ideal behind temporal databases in depth, and why it's 100% consistent with the classical relational model."--Resource description page.

Author : Abdullah Uz Tansel
Publisher : Benjamin-Cummings Publishing Company
ISBN 13 :
Total Pages : 664 pages
Book Rating : 4.75/5 ( download)

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Download or read book Temporal Databases written by Abdullah Uz Tansel and published by Benjamin-Cummings Publishing Company. This book was released on 1993 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organized into four parts: extensions to the relational data model, other data models, implementation, and general language and other issues in temporal databases. Each part gives an introduction to research in the area. Authors discuss topics of current interest and the results of their recent research. Many examples and figures. Contains a glossary of concepts and an extensive bibliography. No index. Annotation copyright by Book News, Inc., Portland, OR