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What is displayed in a rectangular box in an ER diagram?

Attributes

Relationships

Value sets

Entity types (correct)

How are key attributes represented in an ER diagram?

They are displayed in double ovals

They are underlined (correct)

They are italicized

They are displayed in rectangles

How are multivalued attributes displayed in an ER diagram?

In rectangles

In double ovals (correct)

Underlined

In single ovals

What are the components that make up a composite attribute connected to in an ER diagram?

The oval representing the composite attribute Signup and view all the answers

What does A(e) refer to in the context of attributes?

The value of attribute A for entity e Signup and view all the answers

What are the three main concepts of the ER model?

Entities, attributes, and relationships Signup and view all the answers

Which of the following is NOT an initial entity type identified for the COMPANY database schema?

MANAGER Signup and view all the answers

What type of attribute is represented by a single oval in an ER diagram?

Simple attribute Signup and view all the answers

Which statement about the initial design of entity types is true?

It may need to be refined by introducing relationships Signup and view all the answers

What does a relationship in the ER model relate?

Two or more distinct entities with a specific meaning Signup and view all the answers

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Questions and Answers

What is displayed in a rectangular box in an ER diagram?

How are key attributes represented in an ER diagram?

How are multivalued attributes displayed in an ER diagram?

What are the components that make up a composite attribute connected to in an ER diagram?

What does A(e) refer to in the context of attributes?

What are the three main concepts of the ER model?

Which of the following is NOT an initial entity type identified for the COMPANY database schema?

What type of attribute is represented by a single oval in an ER diagram?

Which statement about the initial design of entity types is true?

What does a relationship in the ER model relate?

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