Which of the Following Statements About Foreign Keys Is Not

question 25

Short Answer

Which of the following statements about foreign keys is not true?
A. A foreign key can be a combination of attributes
B. A foreign key cannot be NULL
C. Foreign key must match values of the linked primary key
D. Foreign keys support a defined association

Understand key principles of object-oriented programming, such as polymorphism, and its impact on software development.

Distinguish between parent, derived (child), and base classes in the context of object orientation.

Understand the historical development and significance of various forms of writing and communication media.

Recognize the impact of communication technologies on society and human interaction.

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Definitions:

Metabolic Rates

The rate at which an organism converts nutrients into energy, impacting growth, reproduction, and survival.

Social Groups

Collections of individuals who interact with each other, share similar characteristics and collectively have a sense of unity or identity.

Radiation

The release or conveyance of energy as waves or particles across space or within a material medium.

Archaean Eon

The period of Earth’s history from the formation of the crust approximately 4 billion years ago, until 2.5 billion years ago; life originated during the Archaean.