Examlex
Which of the following describes how electrical current in a metal is formed?
Primary Key Field
A special field in a database table used to uniquely identify each record within the table.
Primary Key Field
A unique identifier for each record in a database table, used to ensure data integrity.
CustomerNumber
A unique identifier assigned to a customer for identification and record-keeping purposes within a database.
IdentificationNumber
A unique identifier assigned to individuals, items, or entities for the purpose of tracking, identification, or verification.
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