Which of the Following Types of Constraints Will Not Allow

question 73

Multiple Choice

Which of the following types of constraints will not allow NULL values?​

• A) ​UNIQUE
• B) ​FOREIGN KEY
• C) ​PRIMARY KEY
• D) ​all of the above

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Definitions:

Population Growth

The expansion of a population due to birth rates exceeding death rates, often measured in percentage change per year.

Family Planning Program

is a health initiative that provides individuals and couples information and access to services regarding reproductive health, including birth control, to enable planning and spacing of births.

China

A country in East Asia, known for being one of the world's oldest civilizations and currently the most populous country.

Population Growth

The growth of a population as the number of its individuals rises over a period.