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Introduction to Database System

Introduction to Database System
The logical data structure with a one-to-many relationship is a

relational
network
chain
tree

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Introduction to Database System
A top-to-bottom relationship among the items in a database is established by a

All of the listed here
Network schema
Relational schema
Hierarchical schema

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Introduction to Database System
If attribute A determines both attributes B and C, then it is also true that:

B →
A →
C →
(B,C) →

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Introduction to Database System
Entities can be associated with one another in which of the following?

Relationships
Identifiers
Entities
Attributes

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Introduction to Database System
Which of the following refers to an entity in which the identifier of one entity includes the identifier of another entity?

Weak entity
ID-dependent entity
ID-independent entity
Strong entity

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Introduction to Database System
Relationship classes are associations between entity classes.

True
False

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