In practice, why would tables that have duplicate rows be allowed?
What will be an ideal response?
It is not uncommon for a table that is returned as the result of a data manipulation operation, such as a query, to contain duplicate rows. This is often tolerated because of the processing time necessary for the DBMS to search the table to find and eliminate duplicate rows. This is especially true if the table is very large. In these cases, it is often acceptable to allow the duplicate rows to exist.
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A. leasehold B. license C. fee simple D. private restriction
In the ______ method of job analysis, questions help to identify the functions that are a part of a particular job, and then, in most cases, it assigns a point value to that function.
A. regressions B. questionnaires C. observations D. workflows
Which of the following methods uses the time value of money for capital investment analysis?
A) Average investment B) Net present value method C) Payback method D) Accounting rate-of-return method
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A. Bond B has a higher price than Bond A today, but one year from now the bonds will have the same price. B. One year from now, Bond A's price will be higher than it is today. C. Bond A's current yield is greater than 8%. D. Bond A has a higher price than Bond B today, but one year from now the bonds will have the same price. E. Both bonds have the same price today, and the price of each bond is expected to remain constant until the bonds mature.