In the context of the relational database model, selecting involves combining two or more tables

Name

:

Clas

s:

Dat

e:

Chapter 3 - Database Systems and Big Data

True / False

1. A database, a database management system, and the application programs that use the data, make up a database

environment.

a. True

b. Fals

e

ANSWER: True

2. A field is typically a name, number, or combination of characters that describes an aspect of a business object.

a. True

b. Fals

e

ANSWER: True

3. A collection of data fields that are all related to one object, activity, or individual is called a file.

a. True

b. Fals

e

ANSWER: Fals

e

4. An attribute is a general class of people, places, or things for which data is collected, stored, and maintained.

a. True

b. Fals

e

ANSWER: Fals

e

5. If "color" is an attribute, then "green" is a data item.

a. True

b. Fals

e

ANSWER: True

6. Two sets of fields can have a common primary key.

a. True

b. Fals

e

ANSWER: Fals

e

7. The database approach to managing data is superior to the file-based approach.

a. True

b. Fals

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