A Key Is a Combination of One or More Columns

question 7

True/False

A key is a combination of one or more columns that is used to identify particular rows in a relation.

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Definitions:

Price

The amount of money required to purchase a good or service, which can fluctuate based on supply and demand dynamics.

Production Technology

The set of processes, methods, or equipment used by firms in the production of goods or services, which affects productivity and efficiency.

Input Prices

The cost of raw materials and other inputs used in the production of goods and services. Lower input prices can increase profitability for producers.

Production Technology

The methods, processes, and equipment used to produce goods and services.