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Introduction to Database System

Introduction to Database System
1:1, 1:N and N:M relationships are also known as HAS-A relationships.

True
False

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

False
True

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Introduction to Database System
Any table that meets the definition of a relation is said to be in first normal form.

False
True

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Introduction to Database System
A relation in this form is free of all modification anomalies.

Domain/key normal form
Second normal form
First normal form
Third normal form

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Introduction to Database System
Which command(s) is(are) used to enable/disable/drop an integrity constraint in SQL?

All of the listed here
DEFINE TABLE
MODIFY TABLE
ALTER TABLE

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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?

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

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