A candidate key is an entity identifier that uniquely identifies an entity.

Name: A candidate key is an entity identifier that uniquely identifies an entity.
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A candidate key is a unique identifier for an entity that can be used to retrieve data or uniquely identify records in a database. It is a critical component of a database as it ensures data integrity and consistency. Multiple candidate keys can exist for an entity, but only one can be chosen as the primary key.

A Candidate Key Is an Entity Identifier That Uniquely Identifies