The Purpose of the ____ Constraint Is to Ensure That

question 20

Multiple Choice

The purpose of the ____ constraint is to ensure that two records do not have the same value stored in the same column.However,it can contain NULL values.​

• A) ​PRIMARY KEY
• B) ​UNIQUE
• C) ​CHECK
• D) ​FOREIGN KEY

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Definitions:

Priming

A psychological phenomenon where exposure to one stimulus influences a response to a subsequent stimulus, without conscious guidance or intention.

Initiating

The act of beginning or starting something, such as a plan, process, or action.

Priming

A process in psychology by which exposure to a stimulus influences response to a later stimulus.

Impression

The overall perception or judgment formed about something or someone based on various information sources and interactions.