A Foreign Key Is ________

question 36

Multiple Choice

A foreign key is ________.

• A)an attribute that is present in only one table
• B)a primary key which appears as an attribute in a different table
• C)a unique value or attribute that determines a primary key
• D)a field, or a group of fields, that makes each record unique in a table

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Definitions:

Catharsis Hypothesis

The theory that expressing or experiencing strong emotions, particularly anger, can lead to a release of tension and a state of psychological refreshment.

Social Exchange Theory

A sociological and psychological theory proposing that social behavior is the result of an exchange process to maximize benefits and minimize costs.

Reciprocity Norm

A social norm that expects individuals to respond to each other in kind, returning benefits for benefits and responding with either indifference or hostility to harms.

Free Samples

Small quantities of a product given to consumers at no cost to introduce the product and encourage future purchasing.