Which Field in the Department Table Should Be the Primary

question 94

Essay

Which field in the Department table should be the primary key and why?

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Definitions:

Break-Even

The point where total expenses match total income, leading to neither a profit nor a loss.

Unit Variable Cost

The cost associated with producing one additional unit of product, including materials, labor, and other variable costs.

Fixed Costs

Overheads like rent, salaries, and insurance that stay the same, irrespective of how much is produced or sold.

Break-Even

The point at which total costs equal total revenues, resulting in no net loss or gain for a business.