Which of the Following Is False Regarding a Well-Structured Relational

question 68

Multiple Choice

Which of the following is false regarding a well-structured relational database?

• A)A foreign key cannot be null.
• B)A primary key cannot be null.
• C)Every column in a row must be single valued.
• D)All nonkey attributes in a table must describe a characteristic of the object identified by the primary key.

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Definitions:

Number of Phases

The distinct stages through which a process, project, or phenomenon passes.

Number of Channels

Refers to the methods or pathways through which a product or service is distributed from the manufacturer or provider to the consumer.

Queue Discipline

The policy or rule set dictating the order in which tasks or customers are serviced, such as first-come-first-served or priority-based.

Continuous Probability

A type of probability distribution where the random variable can take an infinite number of values within a given range.