SQL Views Are Used

question 43

Multiple Choice

SQL views are used:

• A) to hide columns or rows.
• B) to display the results of computations.
• C) to hide complicated SQL syntax.
• D) to layer built-in functions.
• E) All of the above

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Definitions:

Absolute Advantage

The ability of an individual, company, or country to produce a good or service at a lower cost per unit than competitors.

Opportunity Cost

The consequence in terms of lost benefits from not selecting the immediate next preferable option when making a choice.

Productivity

The measure of the efficiency of a person, machine, factory, system, etc., in converting inputs into useful outputs.

Terms of Trade

The ratio at which a country's exports are exchanged for imports, influencing the level of a country's economic health and prosperity.