A Key Is a Column or a Group of Columns

question 7

True/False

A key is a column or a group of columns that identifies a unique row in a table.

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Definitions:

Trade Deficits

A situation where a country's imports exceed its exports over a certain period, leading to more money leaving the economy than entering it.

National Income

National Income is the total value of all goods and services produced by a country's economy over a specific period, often used to gauge economic performance.

Real Interest Rates

The rate of interest an investor expects to receive after allowing for inflation, reflecting the true cost of capital.

Federal Budget Deficit

The amount by which government spending exceeds revenue over a specified period, leading to the need for borrowing or debt issuance.