Explain the essence of normalization that is implemented through the use of normal forms
What will be an ideal response?
The essence of normalization is to create relations that contain data on a single theme, and for each row in a relation to contain all the data about that theme for a given entity. This essence is implemented in the normal forms by taking a relation that contains data on more than one theme and splitting it into multiple relations that each contains data on a single theme. The different normal forms protect against the occurrence of modification anomalies. In practice, making sure all relations are in Boyce-Codd Normal Form (BCNF), or in Fourth Normal Form (4NF) if multivalued dependencies are found, insures high reliability of the database.
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In the liquidity-preference model, if the nominal interest rate is higher than the equilibrium interest rate
A. both bond prices and nominal interest rate will eventually fall. B. both bond prices and nominal interest rate will eventually rise further C. bond prices will fall and nominal interest rate will eventually rise further D. bond prices will rise and nominal interest rate will eventually fall.
Worldwide, the popularity of direct marketing has been steadily decreasing in recent years
Indicate whether the statement is true or false
Which of the following is NOT a symptom of potential investment scams?
a. pressures to get in early on the investment. b. a business with a history of bankruptcy or scandals. c. use of a special tax loophole or a tax avoidance scheme. d. promise of returns comparable to those of treasury bonds.
Agenda-building theory examines who is building the agenda of the media. So far, research shows media agenda-builders tend to be which of the following?
A. Politicians D.