Which of the Following Statements About the Requirements of Table

question 19

Multiple Choice

Which of the following statements about the requirements of table design is incorrect?

• A)Each attribute in a table must have a unique name.
• B)Values of a specific attribute must be of the same type.
• C)Each attribute (column)of a record (row)must be single-valued.
• D)All other non-key attributes in a table must describe a characteristic of the class (table)identified by the foreign key.

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Definitions:

Demand Function

A mathematical equation that describes the quantity of a good that consumers are willing and able to purchase at various prices.

Subsidy

Financial assistance granted by a government or other institution to lower the cost of producing goods or services or to support consumers directly.

Price Elasticity

The measure of how much the quantity demanded of a good responds to a change in its price, with elasticity greater than one indicating a high sensitivity to price changes.

Supply Elasticity

A measure of how much the quantity supplied of a good changes in response to a change in price.