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INTRODUCTION TO DATABASE SYSTEM

Introduction to Database System
Which type of entity represents a logical generalization whose actual occurrence is represented by a second, associated entity?

Supertype entity
Instance entity
Subtype entity
Archetype entity

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Introduction to Database System
In a one-to-many relationship, the entity that is on the many side of the relationship is called a(n) ________ entity.

child
parent
instance
subtype

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Introduction to Database System
An ID-dependent entity is an entity whose identifier is a composite identifier where no portion of the composite identifier is an identifier of another entity.

True
False

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Introduction to Database System
A ternary relationship is so called because in contains two entities and one association between them.

True
False

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Introduction to Database System
All instances of an entity class have the same attributes.

True
False

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