Explain What Primary, Secondary and Unique Key Indexes Are

question 126

Essay

Explain what primary, secondary and unique key indexes are.

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Definitions:

Earlier

Occurring before a specified time or event.

A-not-B Error

A cognitive error observed in infants where they search for an object where it was previously found rather than its new location after observing it being moved.

Object Permanence

Object permanence is the understanding that objects continue to exist even when they cannot be seen, heard, or otherwise sensed, a crucial milestone in cognitive development during infancy.

Hiding Place

Hiding Place denotes a location where someone or something can be concealed, often used either in games such as hide-and-seek or in serious contexts such as protection from danger.