Selecting Data by Means of a Query

question 46

Multiple Choice

Selecting data by means of a query:

• A) deletes unrelated data.
• B) displays only the data that matches the query selection criteria.
• C) locks all other users out of the database.
• D) creates a report.

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Definitions:

Allocative Efficiency

occurs when resources are distributed in a manner that results in the optimal combination of goods and services produced to match consumer preferences.

Productive Efficiency

The production of a good in the least costly way; occurs when production takes place at the output level at which per-unit production costs are minimized.

Marginal Cost

The charge of crafting one more unit of a product or service.

Product Markets

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