Which of the Following Is NOT a Principle of Relational

question 68

Multiple Choice

Which of the following is NOT a principle of relational database design?

• A) Design each table to contain fields that describe only one subject.
• B) Identify a primary key field or key field combination for each table.
• C) Data should be entered before table relationships are built.
• D) Build one-to-many relationships between the tables of your database using a field common to each table.

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Definitions:

Product X

A placeholder name for a generic product or service being discussed or analyzed.

Sherman Act

A foundational United States antitrust law passed in 1890, aiming to restrict monopolistic practices and promote market competition.

Interstate Commerce Act

A United States federal law that was designed to regulate the railroad industry and its monopolistic practices by requiring reasonable and just rates, prohibiting rebates, and ensuring fair treatment of railway users.

Wheeler-Lea Act

The federal law of 1938 that amended the Federal Trade Commission Act by prohibiting unfair and deceptive acts or practices of commerce (such as false and misleading advertising and the misrepresentation of products).