Name: an extended entity-relationship model
SKU: 3485791
Price: 53.83 EUR
Availability: InStock
Author: gogolla
ISBN: 9783540576488

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portada an extended entity-relationship model

Type

Physical Book

Publisher

Springer

Author

gogolla

Language

English

Pages

136

ISBN

3540576487

ISBN13

9783540576488

Synopsis "an extended entity-relationship model"

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.