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  2. Data mapping - Wikipedia

    en.wikipedia.org/wiki/Data_mapping

    The W3C introduced R2RML as a standard for mapping data in a relational database to data expressed in terms of the Resource Description Framework (RDF). In the future, tools based on semantic web languages such as RDF, the Web Ontology Language (OWL) and standardized metadata registry will make data mapping a more automatic process.

  3. Database schema - Wikipedia

    en.wikipedia.org/wiki/Database_schema

    The database schema is the structure of a database described in a formal language supported typically by a relational database management system (RDBMS). The term " schema " refers to the organization of data as a blueprint of how the database is constructed (divided into database tables in the case of relational databases ).

  4. Schema matching - Wikipedia

    en.wikipedia.org/wiki/Schema_matching

    The terms schema matching and mapping are often used interchangeably for a database process. For this article, we differentiate the two as follows: schema matching is the process of identifying that two objects are semantically related (scope of this article) while mapping refers to the transformations between the objects.

  5. Map database management - Wikipedia

    en.wikipedia.org/wiki/Map_database_management

    Map database management systems are software programs designed to store and recall spatial information for navigation applications, and are thus a form of Geographic ...

  6. Associative entity - Wikipedia

    en.wikipedia.org/wiki/Associative_entity

    Concept of a mapping table An associative (or junction) table maps two or more tables together by referencing the primary keys (PK) of each data table. In effect, it contains a number of foreign keys (FK), each in a many-to-one relationship from the junction table to the individual data tables.

  7. Schema crosswalk - Wikipedia

    en.wikipedia.org/wiki/Schema_crosswalk

    It maps the elements in one schema to the equivalent elements in another. Crosswalk tables are often employed within or in parallel to enterprise systems , especially when multiple systems are interfaced or when the system includes legacy system data.

  8. HuffPost Data

    projects.huffingtonpost.com

    Interactive maps, databases and real-time graphics from The Huffington Post. HuffPost Data. Visualization, analysis, interactive maps and real-time graphics. Browse ...

  9. Object–relational mapping - Wikipedia

    en.wikipedia.org/wiki/Object–relational_mapping

    Object–relational mapping (ORM, O/RM, and O/R mapping tool) in computer science is a programming technique for converting data between a relational database and the memory (usually the heap) of an object-oriented programming language. This creates, in effect, a virtual object database that can be used from within the programming language.