Difference between revisions of "Associative entity"
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An '''associative entity''' is an element of the [[Entity-relationship model]]. | An '''associative entity''' is an element of the [[Entity-relationship model]]. | ||
| − | The database relational model does not offer direct support to many-to-many relationships, even though such relationships happen frequently in normal usage. | + | The [[database relational model]] does not offer direct support to [[many-to-many relationships]], even though such relationships happen frequently in normal usage. |
The solution to this problem is the creation of another table to hold the necessary information for this relationship. | The solution to this problem is the creation of another table to hold the necessary information for this relationship. | ||
| − | This new table is called an associative entity. | + | This new table is called an ''associative entity''. |
| + | |||
| + | == See also == | ||
| + | |||
| + | * [[Data model]] | ||
| + | * [[Entity-relationship model]] | ||
== External links == | == External links == | ||
* [https://en.wikipedia.org/wiki/Associative_entity Associative entity] @ Wikipedia | * [https://en.wikipedia.org/wiki/Associative_entity Associative entity] @ Wikipedia | ||
Revision as of 17:32, 24 August 2015
An associative entity is an element of the Entity-relationship model.
The database relational model does not offer direct support to many-to-many relationships, even though such relationships happen frequently in normal usage.
The solution to this problem is the creation of another table to hold the necessary information for this relationship.
This new table is called an associative entity.
See also
External links
- Associative entity @ Wikipedia
