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Published by Springer International Publishing, 2012
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Taschenbuch. Condition: Neu. Druck auf Anfrage Neuware - Printed after ordering - The chase has long been used as a central tool to analyze dependencies and their effect on queries. It has been applied to different relevant problems in database theory such as query optimization, query containment and equivalence, dependency implication, and database schema design. Recent years have seen a renewed interest in the chase as an important tool in several database applications, such as data exchange and integration, query answering in incomplete data, and many others. It is well known that the chase algorithm might be non-terminating and thus, in order for it to find practical applicability, it is crucial to identify cases where its termination is guaranteed. Another important aspect to consider when dealing with the chase is that it can introduce null values into the database, thereby leading to incomplete data. Thus, in several scenarios where the chase is used the problem of dealing with data dependencies and incomplete data arises. This book discusses fundamental issues concerning data dependencies and incomplete data with a particular focus on the chase and its applications in different database areas. We report recent results about the crucial issue of identifying conditions that guarantee the chase termination. Different database applications where the chase is a central tool are discussed with particular attention devoted to query answering in the presence of data dependencies and database schema design. Table of Contents: Introduction / Relational Databases / Incomplete Databases / The Chase Algorithm / Chase Termination / Data Dependencies and Normal Forms / Universal Repairs / Chase and Database Applications.
Taschenbuch. Condition: Neu. Incomplete Data and Data Dependencies in Relational Databases | Sergio Greco (u. a.) | Taschenbuch | Synthesis Lectures on Data Management | xi | Englisch | 2012 | Springer | EAN 9783031007651 | Verantwortliche Person für die EU: Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg, juergen[dot]hartmann[at]springer[dot]com | Anbieter: preigu.
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Taschenbuch. Condition: Neu. Dependencies in Relational Databases | Bernhard Thalheim | Taschenbuch | ii | Deutsch | 2013 | Vieweg & Teubner | EAN 9783663120193 | Verantwortliche Person für die EU: Springer Vieweg in Springer Science + Business Media, Abraham-Lincoln-Str. 46, 65189 Wiesbaden, juergen[dot]hartmann[at]springer[dot]com | Anbieter: preigu.
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Published by Springer International Publishing Aug 2012, 2012
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Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The chase has long been used as a central tool to analyze dependencies and their effect on queries. It has been applied to different relevant problems in database theory such as query optimization, query containment and equivalence, dependency implication, and database schema design. Recent years have seen a renewed interest in the chase as an important tool in several database applications, such as data exchange and integration, query answering in incomplete data, and many others. It is well known that the chase algorithm might be non-terminating and thus, in order for it to find practical applicability, it is crucial to identify cases where its termination is guaranteed. Another important aspect to consider when dealing with the chase is that it can introduce null values into the database, thereby leading to incomplete data. Thus, in several scenarios where the chase is used the problem of dealing with data dependencies and incomplete data arises. This book discusses fundamental issues concerning data dependencies and incomplete data with a particular focus on the chase and its applications in different database areas. We report recent results about the crucial issue of identifying conditions that guarantee the chase termination. Different database applications where the chase is a central tool are discussed with particular attention devoted to query answering in the presence of data dependencies and database schema design. Table of Contents: Introduction / Relational Databases / Incomplete Databases / The Chase Algorithm / Chase Termination / Data Dependencies and Normal Forms / Universal Repairs / Chase and Database Applications 124 pp. Englisch.
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Published by Springer, Berlin|Springer International Publishing|Morgan & Claypool|Springer, 2012
ISBN 10: 3031007654 ISBN 13: 9783031007651
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Condition: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. The chase has long been used as a central tool to analyze dependencies and their effect on queries. It has been applied to different relevant problems in database theory such as query optimization, query containment and equivalence, dependency implication, .
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Published by Springer, Birkhäuser Aug 2012, 2012
ISBN 10: 3031007654 ISBN 13: 9783031007651
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Taschenbuch. Condition: Neu. This item is printed on demand - Print on Demand Titel. Neuware -The chase has long been used as a central tool to analyze dependencies and their effect on queries. It has been applied to different relevant problems in database theory such as query optimization, query containment and equivalence, dependency implication, and database schema design. Recent years have seen a renewed interest in the chase as an important tool in several database applications, such as data exchange and integration, query answering in incomplete data, and many others. It is well known that the chase algorithm might be non-terminating and thus, in order for it to find practical applicability, it is crucial to identify cases where its termination is guaranteed. Another important aspect to consider when dealing with the chase is that it can introduce null values into the database, thereby leading to incomplete data. Thus, in several scenarios where the chase is used the problem of dealing with data dependencies and incomplete data arises. This book discusses fundamental issues concerning data dependencies and incomplete data with a particular focus on the chase and its applications in different database areas. We report recent results about the crucial issue of identifying conditions that guarantee the chase termination. Different database applications where the chase is a central tool are discussed with particular attention devoted to query answering in the presence of data dependencies and database schema design. Table of Contents: Introduction / Relational Databases / Incomplete Databases / The Chase Algorithm / Chase Termination / Data Dependencies and Normal Forms / Universal Repairs / Chase and Database ApplicationsSpringer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 124 pp. Englisch.
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Published by Vieweg Verlag, Friedr, & Sohn Verlagsgesellschaft mbH, 2013
ISBN 10: 3663120198 ISBN 13: 9783663120193
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Published by Vieweg+Teubner, Vieweg+Teubner Verlag Nov 2013, 2013
ISBN 10: 3663120198 ISBN 13: 9783663120193
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Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware 221 pp. Deutsch.
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Published by Vieweg Verlag, Friedr, & Sohn Verlagsgesellschaft mbH, 2013
ISBN 10: 3663120198 ISBN 13: 9783663120193
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Published by Vieweg+Teubner Verlag, 2013
ISBN 10: 3663120198 ISBN 13: 9783663120193
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Condition: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. 1. Database Schemes and Databases.- 2. The Relational Algebra.- 3. Some Fundamentals of Dependency Theory.- 4. Functional Dependencies.- 5. Join Dependencies.- 6. Inclusion Dependencies.- 7. Dependencies in Relations with Null Values and Incomplete Informat.
Language: German
Published by Vieweg+Teubner Verlag, Vieweg+Teubner Verlag Nov 2013, 2013
ISBN 10: 3663120198 ISBN 13: 9783663120193
Seller: buchversandmimpf2000, Emtmannsberg, BAYE, Germany
Taschenbuch. Condition: Neu. This item is printed on demand - Print on Demand Titel. Neuware -1. Database Schemes and Databases.- 2. The Relational Algebra.- 3. Some Fundamentals of Dependency Theory.- 4. Functional Dependencies.- 5. Join Dependencies.- 6. Inclusion Dependencies.- 7. Dependencies in Relations with Null Values and Incomplete Informations.- 8. Horizontal Decomposition Dependencies.- 9. The Relationship between Dependency Classes.- References.Vieweg+Teubner Verlag, Abraham-Lincoln-Straße 46, 65189 Wiesbaden 224 pp. Deutsch.