Define Primary Key,foreign Key,and Relational Databases

question 106

Essay

Define primary key,foreign key,and relational databases:

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Definitions:

Representativeness

A heuristic in which individuals categorize a situation based on the extent to which it resembles, or is representative of, a stereotypical case.

Availability

The ease with which a particular idea or concept can be brought to mind by an individual.

Belief Perseverance

The tendency to maintain one's beliefs even in the face of evidence that contradicts them.

Evidence

Information or facts that are used to support a conclusion, hypothesis, or claim.