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.

---

Definitions:

Lymphocytes

A type of white blood cell that plays a significant role in the immune system, fighting off infections and diseases.

HIV

Human Immunodeficiency Virus, a virus that attacks the immune system and can lead to AIDS if not treated.

AIDS

Acquired Immune Deficiency Syndrome, a life-threatening condition caused by the human immunodeficiency virus (HIV), which severely damages the immune system.

Endorphins

Natural, opiate-like neurotransmitters linked to pain control and to the experience of pleasure.