Which of the Following Properties Should Be Satisfied When the Identifier

question 103

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.

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Definitions:

Contracts

Legally binding agreements between two or more parties that create mutual obligations enforceable by law.

Actual Authority

The specific power given to an agent by a principal, derived from their agreement and can be express or implied based on their actions.

Apparent Authority

The perception by a third party that an agent has the authority to act on behalf of a principal, even if such authority has not been explicitly or implicitly granted.

Principal Liable

Refers to the legal responsibility of the principal party in a relationship (such as an employer) for certain actions of their agents or employees under the doctrine of vicarious liability.