Question

What is a primary key?

A. a field (or group of fields) that uniquely identifies a given entity in a table

B. a primary key of one table that appears as an attribute in another table and acts to provide a logical relationship among the two tables

C. characteristics or properties of an entity

D. a field (or group of fields) that uniquely identifies a given attribute in a table

Answer

This answer is hidden. It contains 42 characters.