Kekoa Konani is chairman of the Chatty Chihuahua Club,where he maintains a database of registered purebred Chihuahuas and their breeding history.One table will store the name,birth date,and other characteristics of all of the registered Chihuahuas.Each Chihuahua is uniquely identified by a registration number.A second table will contain data that link each Chihuahua to its male and female parents by means of their registration numbers.The primary key in the second table is
A) name.
B) registration number.
C) date of birth.
D) relationship number.

Question

Quizplus · Accepted Answer

The primary key in the second table should uniquely identify each record, which in this case is the relationship between a Chihuahua and its parents. A "relationship number" would serve as a unique identifier for each parent-child relationship entry.

Kekoa Konani Is Chairman of the Chatty Chihuahua Club,where He