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eBook The Nested Universal Relation Database Model (Lecture Notes in Computer Science) ePub

eBook The Nested Universal Relation Database Model (Lecture Notes in Computer Science) ePub

by M. Levene

  • ISBN: 0387554939
  • Category: Programming
  • Subcategory: Computers
  • Author: M. Levene
  • Language: English
  • Publisher: Springer Verlag (August 1, 1992)
  • ePub book: 1496 kb
  • Fb2 book: 1413 kb
  • Other: lrf lrf doc rtf
  • Rating: 4.8
  • Votes: 284

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Levene . Loizou G. (1988) A universal relation model for nested relations. Lecture Notes in Computer Science, vol 303.

Levene . Ceri . Missikoff M. (eds) Advances in Database Technology-EDBT '88. EDBT 1988. Springer, Berlin, Heidelberg. First Online 24 May 2005. 1007/3-540-19074-0 59. Publisher Name Springer, Berlin, Heidelberg. Print ISBN 978-3-540-19074-5. Online ISBN 978-3-540-39095-4.

oceedings{Levene1992TheNU, title {The Nested Universal Relation Database Model}, author {Mark Levene}, booktitle {Lecture Notes in Computer Science}, year {1992} }. Mark Levene. Published in. Lecture Notes in Compute. 992. Well, someone can decide by themselves what they want to do and need to do but sometimes, that kind of person will need some the nested universal relation database model references. People with open minded will always try to seek for the new things and information from many sources. On the contrary, people with closed mind will always think.

Nested relations generalize flat relations and allow hierarchically structured objects to be modelled directly, whereas the classical UR model allows the user to view the database as if it were composed of a single flat relation. The author presents a comprehensive formalisation of the nested relational model, which incorporated null values into the model. Functional data dependencies and the classical notion of lossless decomposition are extended to nested relations and an extended chase procedure is defined to test the satisfaction of the data dependencies.

To achieve this, the nested UR (universal relation) model is defined by extending the classical UR model to. .

To achieve this, the nested UR (universal relation) model is defined by extending the classical UR model to nested relations. Nested relations generalize flat relations and allow hierarchically structured objects to be modelled directly, whereas the classical UR model allows the user to view the database as if it were composed of a single flat relation.

M. Levene, "The Nested Universal Relation Database Model," Lecture Notes in Computer Science 595, Berlin: Springer-Verlag, 1992. Hong-Cheu Liu, and K. Ramamohanarao, "Multiple Paths Join for Nested Relational Databases. of the 5th Australian Database Conference, 1994, pp. 30-44. M. Levene, and G. Loizou, "Correction to Null Values in Nested Relational Databases by . Korth and A. Silberschatz," Acta Informatica, vol. 28, pp. 603-605, 1991

Lecture Notes in Computer Science is a series of computer science books published by Springer Science+Business Media since 1973. The series contains proceedings, post-proceedings, and monographs.

Lecture Notes in Computer Science is a series of computer science books published by Springer Science+Business Media since 1973. In addition, tutorials, state-of-the-art surveys, and "hot topics" are increasingly being included. Two sub-series are: Lecture Notes in Artificial Intelligence. Lecture Notes in Bioinformatics. Monographiae Biologicae, another monograph series published by Springer Science+Business Media.

from book Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics): Preface (p. 72-383). Lecture Notes in Computer Science. Conference Paper · January 2011 with 51 Reads. How we measure 'reads'. model focused on describing data types and general relations independent of the. context. Mika et al describe some reasons why knowledge models should. edge database in the urban field with more than 2,000 resources classified ac-. cording to a thesaurus that contains 267 concepts to describe the management.

THE MODEL OF MANAGING THE DEVELOPMENT OF AGRICULTURAL MACHINERY MARKET INFRASTRUCTURE ON THE BASIS OF PUBLIC-PRIVATE MONITORING Morozova . Konina . Litvinova . Mordvintsev . 0. INSTITUTIONAL FRAMEWORKS OF PLACE MARKETING IN RUSSIA: BARRIERS AND NEW POSSIBILITIES Dubova . STRATEGIC GOALS OF SOCIO-ECONOMIC DEVELOPMENT OF REGIONS IN THE CONDITIONS OF ECONOMIC AND FINANCIAL LIMITATIONS Endovitskaya .

Internally, rules are stored in a relational database. VizWiz is the non-official name for a PMML interactive model visualizer implemented in Java. It displays graphically many sorts of data mining models.

Lecture Notes in Computer Science: advertisement. Post-processing Operators for Browsing Large Sets of Association Rules 1 Alipio Jorge1, João Poças2, Paulo Azevedo3 1 LIACC/FEP, Universidade do Porto, Portugal, 2 Instituto Nacional de Estatística, Portugal, 3 Universidade do Minho, Portugal, Abstract. Internally, rules are stored in a relational database. Operators are implemented as SQL queries.

Germany - SIR Ranking of Germany. Computer Science (miscellaneous). Q2.

This monograph describes a method of data modelling whose basic aim is to make databases easier to use by providing them with logical data independence. To achieve this, the nested UR (universal relation) model is defined by extending the classical UR model to nested relations. Nested relations generalize flat relations and allow hierarchically structured objects to be modelled directly, whereas the classical UR model allows the user to view the database as if it were composed of a single flat relation. The author presents a comprehensive formalisation of the nested relational model, which incorporated null values into the model. Functional data dependencies and the classical notion of lossless decomposition are extended to nested relations and an extended chase procedure is defined to test the satisfaction of the data dependencies. The nested UR model is defined, and the classical UR model is shown to be a special case of the nested model.This implies that an UR interface can be implemented by using the nested UR model, thus gaining the full advantages of nested relations over flat relations.