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calcul de domaines

domain oriented calculus

informatique et traitement des données - iate.europa.eu

domain relational calculus

informatique et traitement des données - iate.europa.eu

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Common subexpression isolation in multiple query optimization... This chapter presents techniques for recognizing, supporting, and exploiting common subexpressions in record-oriented, relational algebra, domain relational calculus, and tuple relational calculus query representations, It also investigates preconditions that transaction management mechanisms must satisfy to make...

général - core.ac.uk - PDF: citeseerx.ist.psu.edu

Association rules in the relational calculus... Syntactically, these rules are based on a broad subclass of safe domain relational calculus queries....

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Preferences: putting more knowledge into queries... A preference mechanism is then presented as an extension of a language of the Domain Relational Calculus family, and the expressive power of the resulting language is discussed....

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Common subexpression isolation in multiple query optimization... This chapter presents techniques for recognizing, supporting,and exploiting common subexpressions in record-oriented, relational algebra,domain relational calculus, and tuple relational calculus query representations.It...

PDF: archive.nyu.edu

Querying fuzzy relational databases through fuzzy domain calculusIn this paper we present a definition of a domain relational calculus for fuzzy relational databases using the GEFRED model as a starting point....

PDF: citeseerx.ist.psu.edu

domain calculus

informatique et traitement des données - iate.europa.eu

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Safe reduction of similarity calculus to similarity algebra... In order to support a declarative way of formulating queries, we generalize the classical relational domain calculus by incorporating fuzzy operations and user weights....

général - core.ac.uk - PDF: citeseerx.ist.psu.edu

Cs589 principles of db systems fall 2008 lecture 4e: logic (model-theoretic view of a db)... interpretation) Introduce the model-theoretic description of a relational database and consider how tuple calculus, domain calculus, and datalog use that view....

PDF: citeseerx.ist.psu.edu