Wednesday 13 February 2013

Entity & Attributes in Database Management System


Entity in Database Management System

An entity is an object or a thing such as person, place, concept, activity about which an Organization keeps information. Graphically entity is represented as a rectangle with name.
Example: in College system Student, teacher etc, are called entity.

Attributes in Database Management System

An attribute is the characteristic properties of an entity. It describe the entity. Graphically attributes are represented an an ellipse with name.

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