What Is the Purpose of a Primary Key

question 22

Multiple Choice

What is the purpose of a primary key?

• A)To establish a link from one table to another
• B)To be the first identifier, which does not need to be unique
• C)To use a row that uniquely identifies a column
• D)To link a column to another column

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Definitions:

Collective Action

Action taken together by a group of people with the aim of achieving a common objective, often in response to a social, political, or environmental issue.

Relative Deprivation Theory

A sociological theory that holds individuals who perceive themselves as having less resources than others will feel deprived and might seek to change this through action.

Social Rewards

Benefits or positive outcomes that individuals receive from their social environment or community, including acceptance, support, and recognition.

Frame Alignment Theory

A sociological theory that explores how social movement organizations align their activities and ideologies with the worldviews of potential supporters to increase participation.