An Attribute(s) That Functions as the Primary Key of Relation

question 4

Multiple Choice

An attribute(s) that functions as the primary key of relation A and as a foreign key in relation B of a relational database ____.

• A) must have unique values in both relations
• B) must have unique values in relation A
• C) must have unique values in relation B
• D) must not have unique values in either relation
• E) must have unique values in one relation if it has unique values in the other

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Definitions:

Paid-in Capital

The amount of money that a company has received from shareholders in exchange for shares of stock, beyond the par value of the shares.

Cost Method

An accounting method used to value certain investments at their original purchase cost, less any impairments.

Treasury Stock

Shares that were issued and subsequently reacquired by the issuing company, reducing the amount of outstanding stock on the open market.

Par Value

The nominal or face value of a bond, share of stock, or other financial instrument, as stated by the issuing company.