- extensional database
- экстенсиональная база данных
English-Russian dictionary of computer science. 2015.
extensional database
Смотреть что такое "extensional database" в других словарях:
Datalog — is a query and rule language for deductive databases that syntactically is a subset of Prolog. Its origins date back to the beginning of logic programming, but it became prominent as a separate area around 1977 when Hervé Gallaire and Jack Minker … Wikipedia
Entity-relationship model — A sample Entity relationship diagram using Chen s notation In software engineering, an entity relationship model (ERM) is an abstract and conceptual representation of data. Entity relationship modeling is a database modeling method, used to… … Wikipedia
Extension (semantics) — In any of several studies that treat the use of signs, for example in linguistics, logic, mathematics, semantics, and semiotics, the extension of a concept, idea, or sign consists of the things to which it applies, in contrast with its… … Wikipedia
Attenuation — This article is about attenuation in physics. For other uses, see Attenuation (disambiguation). In physics, attenuation (in some contexts also called extinction) is the gradual loss in intensity of any kind of flux through a medium. For instance … Wikipedia
Conjunctive query — In database theory, a conjunctive query is a restricted form of first order queries. A large part of queries issued on relational databases can be written as conjunctive queries, and large parts of other first order queries can be written as… … Wikipedia
plate tectonics — plate tectonic, adj. Geol. a theory of global tectonics in which the lithosphere is divided into a number of crustal plates, each of which moves on the plastic asthenosphere more or less independently to collide with, slide under, or move past… … Universalium
List of Primary Urban Areas in England by population — This is a list of Primary Urban Areas in England ordered by population. It should be noted however that a large number of these areas do not hold official City status in the United Kingdom and these figures do not correspond with List of largest… … Wikipedia
Lake Tahoe — Tahoe redirects here. For other uses, see Tahoe (disambiguation). Lake Tahoe Lake Tahoe from the east shore (in Nevada) Location California and Nevada,USA … Wikipedia
Garlock Fault — The Garlock Fault is a left lateral strike slip fault line running approximately northeast southwest in southern California. It runs for much of its length along the southern base of the Tehachapi Mountains. It marks the northern boundary of the… … Wikipedia
Diacria quadrangle — Map of Diacria quadrangle from Mars Orbiter Laser Altimeter (MOLA) data. The highest elevations are red and the lowest are blue Coordinates … Wikipedia
Olympic-Wallowa Lineament — Location of the Olympic Wallowa Lineament. Is the OWL an optical illusion? The Olympic Wallowa lineament (OWL) – first reported by cartographer Erwin Raisz in 1945 [1] on a relief map of the continental United States – is a physiographic feature… … Wikipedia
