A Primary Key Is a Candidate Key That Has Been

question 65

True/False

A primary key is a candidate key that has been selected to uniquely identify rows in a relation.

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Definitions:

Reinforcement

In behavioral psychology, an event that strengthens or increases the likelihood of a behavior by providing a consequence an individual finds rewarding.

Microsystem

In bioecological systems theory, the innermost level of context, which includes an individual’s immediate physical and social environment.

Mesosystem

In bioecological systems theory, the relations and interactions among microsystems.

Exosystem

In bioecological systems theory, social settings in which an individual does not participate but has an indirect influence on development.