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  2. Data access object - Wikipedia

    en.wikipedia.org/wiki/Data_Access_Object

    In software, a data access object (DAO) is a pattern that provides an abstract interface to some type of database or other persistence mechanism. By mapping application calls to the persistence layer, the DAO provides data operations without exposing database details. This isolation supports the single responsibility principle.

  3. 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.

  4. Help:Table/Advanced - Wikipedia

    en.wikipedia.org/wiki/Help:Table/Advanced

    Currently, there does not seem to be a way to copy those tables to a wiki and keep styling such as colors (background or text color). It is possible to convert PDF tables to Excel and keep the colors. Or to HTML tables and keep the colors. But there does not seem to be a way to copy any of those colored tables (PDF, Excel, HTML, etc.) to a wiki.

  5. Data mapper pattern - Wikipedia

    en.wikipedia.org/wiki/Data_mapper_pattern

    A Data Mapper is a Data Access Layer that performs bidirectional transfer of data between a persistent data store (often a relational database) and an in-memory data representation (the domain layer). The goal of the pattern is to keep the in-memory representation and the persistent data store independent of each other and the data mapper itself.

  6. Help:Creating tables - Wikipedia

    en.wikipedia.org/wiki/Help:Creating_tables

    The following assumes the syntax is a whole table row in one source line starting with a pipe and with double pipe between cells. It does not work with partially compressed table wikitext either (such as for tables with row headers). A table with any non-compressed wikitext can be completely compressed by pasting the table into Excel2Wiki. Do ...

  7. List of GIS data sources - Wikipedia

    en.wikipedia.org/wiki/List_of_GIS_data_sources

    Locate maps and geographic data content for a particular part of the state or search based on keyword or theme type. [12] Kentucky Open Data Portal: The Kentucky Open Data Portal is a site for exploring, accessing and downloading Kentucky-specific GIS data and discovering mapping apps.

  8. Schema crosswalk - Wikipedia

    en.wikipedia.org/wiki/Schema_crosswalk

    A schema crosswalk is a table that shows equivalent elements (or "fields") in more than one database schema.It maps the elements in one schema to the equivalent elements in another.

  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.