- Boolean query
- булев запрос, логический запрос; булев поиск, логический поиск
English-Russian electronics dictionary .
Boolean query
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Faceted boolean query — A faceted boolean query is a query of paranthetical OR statements linked together by AND boolean operators.For example, the query (1 OR 2) AND (3 OR 4) would match any combination of either the numbers 1 or 2 and 3 or 4. The following sets of… … Wikipedia
Boolean logic — is a complete system for logical operations. It was named after George Boole, who first defined an algebraic system of logic in the mid 19th century. Boolean logic has many applications in electronics, computer hardware and software, and is the… … Wikipedia
Boolean algebra (introduction) — Boolean algebra, developed in 1854 by George Boole in his book An Investigation of the Laws of Thought , is a variant of ordinary algebra as taught in high school. Boolean algebra differs from ordinary algebra in three ways: in the values that… … Wikipedia
Boolean conjunctive query — In the theory of relational databases, a Boolean conjunctive query is a conjunctive query without distinguished predicates, i.e., a query in the form , where each Ri is a relation symbol and each ti is a tuple of variables and constants; the… … Wikipedia
Boolean algebra — This article discusses the subject referred to as Boolean algebra. For the mathematical objects, see Boolean algebra (structure). Boolean algebra, as developed in 1854 by George Boole in his book An Investigation of the Laws of Thought,[1] is a… … Wikipedia
Boolean datatype — In computer science, the Boolean datatype, sometimes called the logical datatype , is a primitive datatype having one of two values: true and false. Many systems represent true as non zero (often 1, or 1) and false as zero . It is the special… … Wikipedia
Boolean delay equation — As a novel type of semi discrete dynamical systems, Boolean Delay Equations (BDEs) are models with Boolean valued variables that evolve in continuous time. Since at the present time, most phenomena are too complex to be modeled by partial… … Wikipedia
Spatial query — A spatial query is a special type of database query supported by geodatabases. The queries differ from SQL queries in several important ways. Two of the most important are that they allow for the use of geometry data types such as points, lines… … Wikipedia
Standard Boolean model — The Boolean model of information retrieval (BIR) is a classical information retrieval (IR) model and, at the same time, the first and most adopted one. It is used by virtually all commercial IR systems today. The BIR is based on Boolean Logic and … Wikipedia
Web search query — A web search query is a query that a user enters into web search engine to satisfy his or her information needs. Web search queries are distinctive in that they are unstructured and often ambiguous; they vary greatly from standard query languages … Wikipedia
List of Boolean algebra topics — This is a list of topics around Boolean algebra and propositional logic. Contents 1 Articles with a wide scope and introductions 2 Boolean functions and connectives 3 Examples of Boolean algebras … Wikipedia
