Question 70

An “employee” table is partitioned into four tables. Which table does not satisfy the condition that “items other than keys are subordinate only to key items”?
In this example, the underlined item represents the primary key.

Employee
Employee number	Name	Birthdate	Salary	Postal code	Address	Position	Department	Work location

a)
Employee number	Salary	Work location

b)
Employee number	Name	Birthdate

c)
Employee number	Position	Department

d)
Employee number	Postal code	Address

answer