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An oval represents which of the following in an EER?

  • A.Attribute
  • B.Entity
  • C.Optional One
  • D.Relationship

Answer: A

Correct answer: Attribute

The oval is the attribute symbol, attached by a line to the entity or relationship it describes. The three basic shapes are quickly learnt: rectangle for entity, oval for attribute, diamond for relationship - and the variants such as the double oval for a multivalued attribute build on them.

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