What Is a Foreign Key

question 16

Multiple Choice

What is a foreign 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:

Incorrect Information

Data or facts that are wrong, misleading, or inaccurately presented.

Keep It Simple

A principle emphasizing the importance of making things easy to understand or not complicating tasks unnecessarily.

KISS Principle

“Keep It Simple, Stupid” principle suggests that systems or solutions should be as simple as possible to prevent complications.

Semantic Barriers

Obstacles to effective communication caused by differences in interpretation of words or phrases.