It is appropriate to use a supertype/subtype relationship when there are attribu

Question

It is appropriate to use a supertype/subtype relationship when there are attributes that apply to some of the instances of an entity type.

Options:

A . True

B . False

Answer: Option A

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More Questions on This Topic :

Question 1. If an entity adheres to the disjoint rule, then an entity instance can be a member of more than one entity for a given s....member of more than one entity for a given supertype.

Question 2. Action assertions have traditionally been implemented within an application program.....

Question 3. An entity cluster is a set of one or more entity types and associated relationships.....

Question 4. An action assertion must include which of the following?....

Question 5. When an entity instance must be a member of only one subtype, it is which of the following?....

Question 6. A supertype/subtype hierarchy is which of the following?....

Question 7. Inheritance is which of the following?....

Question 8. An oval represents which of the following in an EER?....

Question 9. A rectangle represents which of the following in an EER?....

Question 10. Which one of the following symbols is not used in an ERD?....

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