Match the Database Integrity Rule to the Appropriate Definition

question 20

Multiple Choice

Match the database integrity rule to the appropriate definition.
-Rule 2: Primary Key Integrity

• A)Each record in the database must have a unique identifier called a primary key.
• B)Data referenced and stored in related tables must be consistent across the database.
• C)The field values must be from a predefined domain.
• D)The primary key value cannot be null (empty).

---

Definitions:

Real GDP

Real GDP, or Real Gross Domestic Product, measures an economy's total output adjusted for inflation, providing a more accurate picture of an economy's size and growth.

Interest Rate

Interest rate is the percentage charged or paid for the use of money, typically expressed as an annual percentage of the principal.

Real GDP

Real GDP, or real gross domestic product, measures a country's total economic output, adjusted for price changes or inflation.

Unemployment Rate

The portion of the labor group that is unoccupied with work but is actively seeking employment.