Define primary key, foreign key, and metadata.
What will be an ideal response?
A primary key is a column or group of columns that identifies a unique row in a table. Columns that are primary keys in a table other than the one in which they reside are called foreign keys. Metadata are data that describe data in the database.
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The degree to which the managers of a firm attempt to magnify the returns to owners' capital through the use of financial leverage is captured in debt management ratios.
Answer the following statement true (T) or false (F)
Sam owns an oil field with a number of producing wells. In the past, he has started and stopped production of these wells as the price of oil fluctuated over time. Assume the government imposes additional requirements on non-producing wells that are still production capable. These requirements are expected to increase the cost of stopping well production by 30 percent. As a result, Sam should be:
A) keeping all wells open continuously. B) closing wells only if he plans to keep them closed permanently. C) willing to keep wells operating at a lower level of profitability than he has in the past. D) increasing the cost of capital he applies to his well evaluation analysis. E) opening wells at a lower popen price.
Public key cryptography is used to
A. encrypt messages B. authenticate messages C. append digital signatures D. all of the choices are correct
A financial institution may service a mortgage even after selling it
a. True b. False