The SQL SELECT DISTINCT Operator ____

question 58

Multiple Choice

The SQL SELECT DISTINCT operator ____.

• A) eliminates duplicate rows in the output of an SQL SELECT command
• B) eliminates duplicate columns in the output of an SQL SELECT command
• C) eliminates duplicate attribute values within a row of the output of an SQL SELECT command
• D) eliminates duplicate attribute values within a column of the output of an SQL SELECT command
• E) None of the above.

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Definitions:

Consumer Surplus

The difference between what consumers are willing to pay for a good or service and what they actually pay, representing the benefit to consumers.

Producer Surplus

The difference between the amount producers are willing to sell a product for and the actual price they receive.

Overproducing

Overproducing is the act of producing more of a product than is demanded in the market, leading to surplus inventory and potential waste or decreased prices.

Product Markets

Markets where goods and services produced by businesses are sold to households and other businesses.