A join links tables by selecting only the rows with common values in their common

attribute(s).

A. Attribute

B. Unique

C. Foreign

D. Natural - correct answer D. Natural

A key can be described as a minimal superkey, a superkey without any unnecessary

attributes.

A. Candidate

B. Secondary

C. Foreign

D. Primary - correct answer A. Candidate

True or False:

Character data type is also known as string data type, can contain any character or symbol not

intended for mathematical manipulation, but character sets can include digits or a numeric

string. - correct answer True

A is the primary key of one table that has been placed into another table to create a

common attribute