What Is a Key and How Is It Important in a Relational

question 14

Essay

What is a key and how is it important in a relational model?

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Definitions:

Automatic Encoding

Tendency of certain kinds of information to enter long-term memory with little or no effortful encoding.

Long-term Memory

The phase of memory that is capable of storing information for extended periods of time, ranging from minutes to a lifetime.

Effort

is the use of physical or mental energy to accomplish a task or goal.

Eyewitness Recognition

The process by which an individual who has witnessed a crime or event identifies persons, objects, or places related to the incident.