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Introduction to Database System

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

attribute.
identifier.
entity.
relationship.

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

attribute.
ER
database.
entity class.

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Introduction to Database System
In a one-to-many relationship, the entity that is on the one side of the relationship is called a(n) ________ entity.

parent
instance
subtype
child

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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 field
data record
database
data file

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Introduction to Database System
A primary key is a composite key that was selected to be the main identifier for the relation.

True
False

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Introduction to Database System
In SQL, which command is used to add new rows to a table?

ALTER TABLE
INSERT
APPEND
ADD ROW

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