What Is a Primary Key

question 21

Multiple Choice

What is a primary key?

• A)a field that uniquely identifies a given record in a table
• B)a primary key of one table that appears as an attribute in another table and acts to provide a logical relationship between the two tables
• C)a table that uniquely identifies a given record in a field
• D)a foreign key of one table that appears as an entity in another table and acts to provide a logical relationship between the two records

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Definitions:

Intended Actions

Actions that are performed with a specific goal or purpose in mind, as opposed to those done unintentionally or reflexively.

Unintended Actions

Actions whose outcomes are not foreseen or intended by the actor, often leading to unexpected consequences.

Micro-Macro Integration

A perspective in sociology that seeks to link the study of individual-level interactions and processes (micro) with larger-scale social structures and phenomena (macro).

United States

A country in North America composed of 50 states, known for its significant cultural and economic influence worldwide.