A Combination of Two or More Columns Used to Identify

question 49

Multiple Choice

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

• A)record
• B)field
• C)composite key
• D)foreign key
• E)surrogate key

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Definitions:

Type B Personality

A personality type characterized by a relaxed, patient, and easy-going nature, identified as part of the theory contrasting with the more intense Type A personality.

Learned Helplessness

A psychological state in which an individual perceives themselves as powerless, often in the wake of a traumatic happening or continuous failures.

Type A Personality

A personality type characterized by high levels of competitiveness, self-imposed stress, and a constant sense of urgency.

External Locus of Control

The belief that outcomes in one’s life are largely influenced by external forces or luck rather than one’s own efforts.