Which of the Following Is Not True About Surrogate Keys

question 52

Multiple Choice

Which of the following is not true about surrogate keys?

• A)They are identifiers that are supplied by the system,not the users.
• B)They have no meaning to the users.
• C)They are nonunique within a table.
• D)They can be problematic when combining databases.
• E)The DBMS will not allow their values to be changed.

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Definitions:

Collection Float

The time gap between when a check is deposited and when funds are made available in the account, affecting the company's cash flow.

Purchasing Power Parity

An economic theory that compares different countries' currencies through a basket of goods approach to find the relative values of the currencies.

Exchange Rates

The value of one currency expressed in terms of another currency, affecting international trade and investments.

Generalized Fisher Effect

A theory stating that the real interest rate is independent of monetary measures, with nominal interest rates adjusting to expected inflation.