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database model
A database model is a type of data model that determines the logical structure of a database and fundamentally determines in which manner data can be stored, organized, and manipulated. The most popular example of a database model is the relational model, which uses a table-based format.
==Examples==
Common logical data models for databases include:
* Hierarchical database model
* Network model
* Relational model
* Entity–relationship model
*
* Enhanced entity–relationship model
* Object model
* Document model
* Entity–attribute–value model
* Star schema
An object-relational database combines the two related structures.
Physical data models include:
* Inverted index
* Flat file
Other models include:
* Associative model
* Multidimensional model
* Multivalue model
* Semantic model
* XML database
* Named graph
* Triplestore
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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