Why Do Relational Databases Use Primary Keys and Foreign Keys

question 14

Multiple Choice

Why do relational databases use primary keys and foreign keys?

• A) To create a database.
• B) To create physical relationships.
• C) To create logical relationships.
• D) All of these.

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Definitions:

Radical Invention

An innovation that represents a significant departure from existing practices or products, often creating new markets or dramatically changing existing ones.

New-Product Strategies

Approaches, methods, or plans developed by businesses to introduce and establish new products in the market successfully.

Product Deletion

The process of permanently removing a product from a company's offerings due to factors like poor sales, obsolescence, or strategic realignment.

Brand Extension

The practice of using an established brand name on a new product category, leveraging the brand's existing reputation and customer base.