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Models

2014-2-19 22:43| view publisher: amanda| views: 1002| wiki(57883.com) 0 : 0

description: 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 popul ...
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 (or the SQL approximation of relational), which uses a table-based format.
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

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