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Introduction to Database System

Introduction to Database System
Enterprise Resource Planning (ERP) is an example of a single user database.

False
True

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Introduction to Database System
In a relation, the columns are sometimes called "attributes".

False
True

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Introduction to Database System
In SQL, which command is used to remove a stored function from the database?

DELETE FUNCTION
ERASE FUNCTION
None of these
REMOVE FUNCTION
DROP FUNCTION

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Introduction to Database System
A compound key

is made up a several pieces of information
both (a) and (b)
uniquely identifies an item in a list
None of these
is a combination of each unique key

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Introduction to Database System
The degree of a relationship refers to the number of entity classes in the relationship.

False
True

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Introduction to Database System
Which of the following refers to something that can be identified in the user's work environment, something that the users want to track?

Identifier
Entity
Relationship
Attribute

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