If Order Number Serves as the Primary Key in the ORDER

question 110

Multiple Choice

If order number serves as the primary key in the ORDER relation and also appears as a nonprimary key attribute in the INVOICE relation,then order number is said to be a:

• A)foreign key
• B)candidate key
• C)pointer
• D)relationship key

---

Definitions:

GDP Deflator

A measure that reflects the prices of all goods and services produced domestically, accounting for inflation within a country's economy.

Base Year

A reference year against which economic growth, price changes, or other data is compared in indexes or other statistical measures.

GDP Deflator

A measure of the level of prices of all new, domestically produced, final goods and services in an economy, used to deflate nominal GDP to real GDP.

Percentage Change

A mathematical calculation that represents the degree of change over time, expressed as a percent, indicating how much something has increased or decreased.