A primary key is one or a group of data elements that uniquely identifies what?
A) A file
B) A record
C) A transaction
D) A byte

Name: A primary key is one or a group of data elements that uniquely identifies what? A) A file B) A record C) A transaction D) A byte
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Question

Quizplus · Accepted Answer

A primary key is used to uniquely identify a record within a file or database. A record is a collection of related data elements, so the primary key is not used to identify a file, transaction, or byte.

A Primary Key Is One or a Group of Data