A sorting algorithm that sorts data in ascending order can be used to sort data in
descending order
a. Never.
b. Only if the algorithm is modified.
c. Only if the algorithm is inverted.
d. Given the proper data.
e. None of the above.
b
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Case-Based Critical Thinking QuestionsCase 1Penny is just starting out in her database coursework and she is looking for a quick primer on some of the key terms that she will use again and again. Her roommate Meredith has offered to give her the guidance she seeks. Penny is confused by Meredith’s use of the term column. Meredith informs Penny that column is a synonym for ____.
A. row B. field C. relation D. table
Microsoft's Exchange Server works with Microsoft Outlook and provides all of the following EXCEPT ________
A) Microsoft Excel B) a calendar C) contact management D) a task list
Examine the dimensional model (star schema) shown in Figure 32.13. This model describes part of a database that will provide decision support for a taxi company called FastCabs. This company provides a taxi service to clients who can book a taxi either by phone a local office or online through the company’s Web site. The owner of FastCabs wishes to analyze last year’s taxi jobs to gain a
better understanding of how to resource the company in the coming years. (a) Provide examples of the types of analysis that can be undertaken, using the star schema in Figure 32.13. (b) Provide examples of the types of analysis that cannot be undertaken, using the star schema in Figure 32.13. (c) Describe the changes that would be necessary to the star schema shown in Figure 32.13 to support the following analysis. (At the same time consider the possible changes that would be necessary to the transaction system providing the data.) (d) Identify examples of natural and surrogate keys in the star schema shown in Figure 32.13 and describe the benefits associated with using surrogate keys in general. (e) Using examples taken from the dimensional model of Figure 32.13, describe why the model is referred to as a “star” rather than a “starflake” schema. (f) Consider the dimensions of Figure 32.13 and identify examples that may suffer from the slowly changing dimension problem. Describe for each example, whether type I, II, or III would be the most useful approach for dealing with the change.
What is the default file extension for a regular Excel 2016 document?
A) .xls B) .xltx C) .xlt D) .xlsx