Computer Science, asked by anna5798, 10 months ago

Define the term entity and attribute. Explain different attribute types with respect to e-r model.

Answers

Answered by iamishitap

Answer:

The attribute which uniquely identifies each entity in the entity set is called key attribute.For example, Roll_No will be unique for each student. In ER diagram, key attribute is represented by an oval with underlying lines.

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