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logical data type

См. также в других словарях:

  • Data independence — is the type of data transparency that matters for a centralized DBMS. It refers to the immunity of user applications to make changes in the definition and organization of data. Physical data independence deals with hiding the details of the… …   Wikipedia

  • Data architecture — in enterprise architecture is the design of data for use in defining the target state and the subsequent planning needed to achieve the target state. It is usually one of several architecture domains that form the pillars of an enterprise… …   Wikipedia

  • Data model — Overview of data modeling context: A data model provides the details of information to be stored, and is of primary use when the final product is the generation of computer software code for an application or the preparation of a functional… …   Wikipedia

  • Data modeling — The data modeling process. The figure illustrates the way data models are developed and used today. A conceptual data model is developed based on the data requirements for the application that is being developed, perhaps in the context of an… …   Wikipedia

  • Type theory — In mathematics, logic and computer science, type theory is any of several formal systems that can serve as alternatives to naive set theory, or the study of such formalisms in general. In programming language theory, a branch of computer science …   Wikipedia

  • Type conversion — This article is about the computer science concept. For the aviation licensing process, see Type conversion (aviation). In computer science, type conversion, typecasting, and coercion refers to different ways of, implicitly or explicitly,… …   Wikipedia

  • Data validation — In computer science, data validation is the process of ensuring that a program operates on clean, correct and useful data. It uses routines, often called validation rules or check routines , that check for correctness, meaningfulness, and… …   Wikipedia

  • Data recovery — is the process of salvaging data from damaged, failed, corrupted, or inaccessible secondary storage media when it cannot be accessed normally. Often the data are being salvaged from storage media such as internal or external hard disk drives,… …   Wikipedia

  • Logical positivism — (also known as logical empiricism, scientific philosophy, and neo positivism) is a philosophy that combines empiricism the idea that observational evidence is indispensable for knowledge with a version of rationalism incorporating mathematical… …   Wikipedia

  • Logical security — consists of software safeguards for an organization’s systems, including user ID and password access, authentication, access rights and authority levels. These measures are to ensure that only authorized users are able to perform actions or… …   Wikipedia

  • Data-flow analysis — is a technique for gathering information about the possible set of values calculated at various points in a computer program. A program s control flow graph (CFG) is used to determine those parts of a program to which a particular value assigned… …   Wikipedia

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