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Introduction to Database System

Introduction to Database System
An attribute that names or identifies entity instances is a(n):

entity.
attribute.
identifier.
relationship.

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Introduction to Database System
Keys made up of two or more attributes are called composite keys.

True
False

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Introduction to Database System
The PROJECT command will create new table that has

more rows than the original table
more fields than the original table
none of the listed here
both of the listed here

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Introduction to Database System
A form can be used to

All of these
modify records
delete records
format printed output
None of these

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Introduction to Database System
A database design may be based on existing data.

True
False

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Introduction to Database System
Relations are categorized into normal forms according to the referential integrity constraints that they have.

True
False

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