All of the Following Are Ways to Represent an Inheritance

question 86

Multiple Choice

All of the following are ways to represent an inheritance structure in a database EXCEPT:

• A) table per concrete class with implicit polymorphism.
• B) table per concrete class with unions.
• C) table per abstract class with joins.
• D) table per class hierarchy.

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Definitions:

Perfectly Competitive

A market structure where many firms sell identical products, no barriers to entry exist, and no single buyer or seller can affect the market price.

Market Wage Rate

The prevailing wage determined by the supply and demand for labor in the market, varying across different skill levels, industries, and regions.

Power Cords

Electrical cables specifically designed to connect an appliance or device to the main electricity supply.

Minimum Wage

The lowest legal hourly wage that workers can be paid by employers, a measure aimed at protecting workers from unduly low pay.