​If a Multiple-Column Subquery Is Contained in the WHERE or HAVING

question 115

Short Answer

​If a multiple-column subquery is contained in the WHERE or HAVING clause of the outer query,the ____________________ operator must be used.

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Definitions:

Hindsight Bias

The tendency to believe, after an event has occurred, that one would have predicted or expected the outcome, also known as the "I-knew-it-all-along" effect.

Placebo Effect

The phenomenon by which patients experience a perceived or actual improvement in their condition solely due to their belief in the efficacy of a treatment, regardless of its actual therapeutic value.

Illusory Correlation

The cognitive bias of perceiving a relationship between variables (typically people, events, or behaviors) even when no such relationship exists.

Representative Sample

A subset of a population that accurately reflects the members of the entire population.