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Introduction to Database System

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

Relational schema
All of the listed here
Network schema
Hierarchical schema

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Introduction to Database System
In which of the following is a single-entity instance of one type related to many entity instances of another type?

Many-to-Many Relationship
Composite Relationship
One-to-One Relationship
One-to-Many Relationship

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Introduction to Database System
One solution to the multivalued dependency constraint problem is to:

split the relation into two relations, each with a single theme.
change the theme.
add a composite key.
create a new theme.

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Introduction to Database System
Entities of a given type are grouped into a(n):

ER
entity class.
database.
attribute.

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Introduction to Database System
The only reason for the existence of relations is to store instances of functional dependencies.

False
True

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Introduction to Database System
An operation that will increase the length of a list is

Modify
Look-up
Insert
All of the listed here

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