In a Database, a Key Is a Column or Group

question 58

True/False

In a database, a key is a column or group of columns that identifies a unique row in a table.

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Definitions:

Confederate

In research, a person who is part of the experiment team but pretends to be a participant; historically, also refers to a supporter of the Confederate States of America.

Research Assistant

A person who assists in academic or private research, often involved in collecting, organizing, and analyzing data.

Ersatz-Participant

This seems to be a fabricated term that does not correspond to a widely recognized key term in the provided context. NO.

A Priori Causal Theories

Preexisting theories, acquired from culture or factors that are particularly prominent in conscious attention at the moment.