A Combination of One or More Columns Used to Identify

question 72

Multiple Choice

A combination of one or more columns used to identify particular rows in a relation is a ________.

• A)record
• B)field
• C)key
• D)tuple
• E)dependency

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Definitions:

Undocumented Workers

Individuals working in a country without legal authorization or documentation, often facing precarious employment conditions.

Control Act

Legislation enacted to regulate or oversee a specific activity, substance, or practice for the purpose of maintaining order, safety, or public interest.

Secret Arms Sale

The covert selling and distribution of military weapons and equipment, often to countries or groups without the approval or acknowledgment of the public or certain governing bodies.

Contras in Nicaragua

Nicaraguan rebel groups that opposed the Sandinista government in the 1980s, receiving support from the United States government.