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- catalog abstract ""This text presents a comprehensive introduction to an extended Entity-Relationship model both on a conceptual and on a formal, mathematicallevel. In addition to the primitives given by the data model the text introduces a language for the formulation of constraints in order to restrict database states to consistent ones. The text explains an implementation of the approach chosen in the logic programing language PROLOG and discusses in this context the computational power of the proposedcalculus. The extended Entity-Relationship calculus is used to define the meaning of the relational query language SQL. A nice feature of the approach is that it becomes possible to prove language properties on a sound mathematical basis."--PUBLISHER'S WEBSITE.".
- catalog contributor b6329373.
- catalog created "c1994.".
- catalog date "1994".
- catalog date "c1994.".
- catalog dateCopyrighted "c1994.".
- catalog description ""This text presents a comprehensive introduction to an extended Entity-Relationship model both on a conceptual and on a formal, mathematicallevel. In addition to the primitives given by the data model the text introduces a language for the formulation of constraints in order to restrict database states to consistent ones. The text explains an implementation of the approach chosen in the logic programing language PROLOG and discusses in this context the computational power of the proposedcalculus. The extended Entity-Relationship calculus is used to define the meaning of the relational query language SQL. A nice feature of the approach is that it becomes possible to prove language properties on a sound mathematical basis."--PUBLISHER'S WEBSITE.".
- catalog description "1. Introduction -- 2. Structure of Data and Entities -- 3. Extended Entity-Relationship Calculus -- 4. PROLOG Implementation -- 5. Formal Semantics of SQL -- 6. Conclusions.".
- catalog description "Includes bibliographical references (p. [123]-133) and index.".
- catalog extent "x, 136 p. :".
- catalog hasFormat "Extended entity-relationship model.".
- catalog identifier "0387576487 (New York : acid-free paper)".
- catalog identifier "3540576487 (Berlin : acid-free paper) :".
- catalog isFormatOf "Extended entity-relationship model.".
- catalog isPartOf "Lecture notes in computer science ; 767".
- catalog issued "1994".
- catalog issued "c1994.".
- catalog language "eng".
- catalog publisher "Berlin ; New York : Springer-Verlag,".
- catalog relation "Extended entity-relationship model.".
- catalog subject "005.75 20".
- catalog subject "Entity-relationship modeling.".
- catalog subject "Prolog (Computer program language)".
- catalog subject "QA76.9.D3 G63 1994".
- catalog subject "Relational databases.".
- catalog subject "SQL (Computer program language)".
- catalog tableOfContents "1. Introduction -- 2. Structure of Data and Entities -- 3. Extended Entity-Relationship Calculus -- 4. PROLOG Implementation -- 5. Formal Semantics of SQL -- 6. Conclusions.".
- catalog title "An extended entity-relationship model : fundamentals and pragmatics / Martin Gogolla.".
- catalog type "text".