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ID number:624822
 
Evaluation:
Published: 01.04.2004.
Language: English
Level: Secondary school
Literature: n/a
References: Not used
Extract

An Entity Relationship Model, also known as an Entity Relationship Diagram, a graphical representation of entities and their relationships to each other, typically used in computing in regard to the organization of data within databases or information systems. An entity is a piece of data; an object or concept about which data is stored. A relationship is how the data is shared between entities. The three types of relationships between entities are one-to-one, one-to-many, and many-to-many.

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