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Introduction to Database System

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

identifier.
entity.
relationship.
attribute.

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Introduction to Database System
An entity is something that can be identified in the user's work environment; something that the users want to track.

True
False

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Introduction to Database System
The model for a record management system might be

a Rolodex card file
handwritten list
None of these
a business form
All of these

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Introduction to Database System
In SQL, which of the following is not a data Manipulation Language Commands?

CREATE
UPDATE
DELETE
SELECT

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Introduction to Database System
Data security threats include

hardware failure
privacy invasion
fraudulent manipulation of data
all of the listed here

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Introduction to Database System
A key is a group of one or more attributes that uniquely identifies a row.

False
True

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