A Constraint That Has a Data Field (Column) of Unique

question 41

Multiple Choice

A constraint that has a data field (column) of unique values that is shared with other databases is referred to as what?

• A) Unique
• B) Foreign-key
• C) Set-membership
• D) Range

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Definitions:

Cause-Effect

A relationship in which one event (the cause) makes another event happen (the effect).

Coherence Device

Tools or strategies used in writing or speech to ensure the logical flow of ideas and clear connection between them.

Demonstrative Pronouns

Words used to point out specific things or people, such as "this", "that", "these", and "those".

Declining Enrollment

Describes a situation where the number of individuals registering or enrolling in an institution, such as a school or program, decreases over a period of time.