What Is a Foreign Key

question 5

Multiple Choice

What is a foreign key?

• A) A field (or group of fields) that uniquely identifies a given entity 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 among the two tables
• C) Characteristics or properties of an entity class
• D) A field (or group of fields) that uniquely identifies a given attribute in a table

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Definitions:

Anemia

A condition in which the blood doesn't have enough healthy red blood cells to carry adequate oxygen to the body's tissues.

Preterm Newborns

Newborns born before the completion of 37 weeks of pregnancy.

Frequent Blood Sampling

The process of regularly collecting blood samples from a patient for diagnostic or monitoring purposes.

Congenital Hypothyroidism

A condition present at birth where the thyroid gland produces insufficient amounts of thyroid hormone, crucial for growth and metabolism.