Logres is a new-generation database system integrating features from deductive and object-oriented databases [1, 2, 3, 4, 5]. The data model of Logres supports structural and semantic complexity through a rich collection of concepts from object-oriented models. The rule language allows for the manipulation of complex objects, the generation of new objects, and the definition of passive and active constraints. The application of set of rules to database states is controlled by means of qualifiers, which dictate the side effects of rules; qualifiers are the unique procedural feature of Logres, otherwise a fully declarative language.
The LOGRES prototypeProceedings of the 1993 ACM SIGMOD international conference on Management of data - SIGMOD '93
CERI, STEFANO;CRESPI REGHIZZI, STEFANO;FRATERNALI, PIERO;TANCA, LETIZIA
1993-01-01
Abstract
Logres is a new-generation database system integrating features from deductive and object-oriented databases [1, 2, 3, 4, 5]. The data model of Logres supports structural and semantic complexity through a rich collection of concepts from object-oriented models. The rule language allows for the manipulation of complex objects, the generation of new objects, and the definition of passive and active constraints. The application of set of rules to database states is controlled by means of qualifiers, which dictate the side effects of rules; qualifiers are the unique procedural feature of Logres, otherwise a fully declarative language.File in questo prodotto:
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