Anna asks if it is manageable to fetch records using a field or combination of fields that is not unique. Emily tells her that it is possible using one type of key. Identify the type of key used here.
A)Primary key
B)Secondary key
C)Foreign key
D)Super key

Question

Quizplus · Accepted Answer

A super key is a set of one or more fields/columns in a database table that uniquely identifies each record in that table. However, it may contain more fields than required to uniquely identify a record. Therefore, it is possible to fetch records using a field or combination of fields that is not unique by using a super key.

Anna Asks If It Is Manageable to Fetch Records Using