In a relational database design, all relationships are expressed by ________
A) creating a primary key
B) creating a foreign key
C) creating a supertype
D) creating a subtype
E) creating a line between entities
B
Business
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Which of the following statements is true about the Department of Homeland Security?
A. It issues rules affecting every industry. B. Its budget is almost 10 times that of the next largest agency, the EPA. C. It has 60,000 employees. D. It is primarily a business regulator.
Business
If you are able to predict the change in financial accounting's measure of profitability, you can predict the change in stock prices, too.
a. true b. false
Business