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1 data model
"A collection of related object types, operators, and integrity rules that form the abstract entity supported by a database management system (DBMS). Thus, one speaks of a relational DBMS, a network DBMS, and so on, depending on the type of data model a DBMS supports. In general, a DBMS supports only one data model as a practical rather than a theoretical restriction." -
2 module
"In programming, a collection of routines and data structures that performs a particular task or implements a particular abstract data type. Modules usually consist of two parts: an interface, which lists the constants, data types, variables, and routines that can be accessed by other modules or routines, and an implementation, which is private (accessible only to the module) and which contains the source code that actually implements the routines in the module." -
3 geography
An abstract data type that is the base type for all geospatial data types in ellipsoidal coordinate systems. -
4 geometry
An abstract data type that is the base type for all geospatial data types in planar coordinate systems.
См. также в других словарях:
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