A data item or combination of data items that uniquely identify a particular record in a file is called a(n)
A) key.
B) occurrence.
C) attribute.
D) variable-length field.

Question

Quizplus · Accepted Answer

A key is a unique identifier for a record in a file, and is often used to retrieve or modify that record. The other choices do not necessarily have the unique identification properties necessary for use as a key.

A Data Item or Combination of Data Items That Uniquely