Which of the Following Properties Should Be Satisfied When the Identifier

question 227

Multiple Choice

Which of the following properties should be satisfied when the identifier of the entity type becomes the primary key of the corresponding relation?

• A) The value of the key must uniquely identify every row in the relation.
• B) The key should serve as a foreign key in at least two other relations.
• C) The key must be a composite of a primary key and a secondary key.
• D) The key should be an intelligent key.
• E) The key should allow for null values.

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Definitions:

Stand-Alone Principle

A method in capital budgeting where a project is evaluated based on its own profitability without considering the impact of other projects or financing methods.

Incremental Cash Flows

The additional cash inflows or outflows expected from taking on a new project or investment, essential for assessing its potential profitability.

Evaluation

The process of determining the significance, worth, or condition of something, typically through careful appraisal and study.

Depreciation Tax Shield

The tax savings achieved by a company from the allowance for depreciation expenses, reducing taxable income.