A ____ key is a unique key that you create by combining two or more columns.
A)composite
B)primary
C)foreign
D)secondary

Question

Quizplus · Accepted Answer

A composite key is created by combining two or more columns to create a unique identifier for a record. This type of key is useful when a single column cannot provide a unique identifier for each record, but a combination of columns can. Primary keys are also unique identifiers, but they are created using a single column. Foreign keys are used to connect two tables with a relationship, and secondary keys are additional keys used for searching or sorting.

A ____ Key Is a Unique Key That You Create