A Primary Key for an Entity Type Should Never Change

question 39

True/False

A primary key for an entity type should never change after it has been assigned,and it should serve no other purpose but to identify that entity.

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Definitions:

Palliative Care

Level of care that is designed to relieve or reduce intensity of uncomfortable symptoms but not to produce a cure. Palliative care relies on comfort measures and use of alternative therapies to help individuals become more at peace during end of life.

Cancer Treatments

Medical strategies used to fight cancer, including surgery, chemotherapy, radiation therapy, and immunotherapy, among others.

Sexuality

“A function of the total personality … concerned with the biological, psychological, sociological, spiritual and culture variables of life …” (Sex Information and Education Council of the United States, 1980).

Chemotherapy

A type of cancer treatment using drugs to destroy or slow the growth of cancer cells.