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Introduction to Database System

Introduction to Database System
Entity instances are associated by relationship classes.

True
False

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Introduction to Database System
An identifier determines the type of relationship that an entity has.

True
False

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Introduction to Database System
A _____ Contains fields of data about one entity.

Document
Record
Fields
File
None of these

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Introduction to Database System
Helping people keep track of things is the purpose of a(n) ________ .

instance
table
relationship
database

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Introduction to Database System
In any hierarchy of data organization, the smallest entity to be processed as a single unit is called

None of these
data record
database
data file
data field

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Introduction to Database System
Which of the following indicates the maximum number of entities that can be involved in a relationship?

ERD
Greater Entity Count (GEC)
Maximum cardinality
Minimum cardinality

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