Which of the Following Statements About a PRIMARY KEY Is

question 37

Multiple Choice

Which of the following statements about a PRIMARY KEY is incorrect?​

• A) ​It identifies which column(s)uniquely identify each record.
• B) ​It can be NULL,as long as the FOREIGN KEY contains a value.
• C) ​Each data value must be unique.
• D) ​none of the above

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Definitions:

Management Reserves

Funds set aside by management for unforeseen changes in the scope or cost of a project.

Contingency Reserves

Allocated resources, time, or funds kept in reserve to address potential unforeseen obstacles or costs in a project.

Budget Baseline

The original approved plan for the project's budget against which project performance can be monitored and controlled.

Last Moment

A point in time immediately before a deadline or significant event, often associated with high stress or urgency.