Which of the following is a field that contains a unique value for each record?
A) primary key
B) secondary key
C) index
D) record selector

Question

Quizplus · Accepted Answer

A primary key is a field that contains a unique value for each record. It is used to identify each record in the database and to establish relationships between tables. Secondary keys and indexes can also be used to help identify records, but they may not contain unique values for each record. Record selectors are used to select multiple records for editing or deletion, but they do not contain unique values.

Which of the Following Is a Field That Contains a Unique