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Show that the following decomposition of the schema R of Practice Exercise 8.1 is not a lossless decomposition:
(A, B, C)
(C, D, E)
Hint: Give an example of a relation r on schema R such that
a. Compute B+.
b. Prove (using Armstrong's axioms) that AF is a super key.
c. Compute a canonical cover for the above set of functional dependencies F; give each step of your derivation with an explanation.
d. Give a 3NF decomposition of r based on the canonical cover.
e. Give a BCNF decomposition of r using the original set of functional dependencies.
f. Can you get the same BCNF decomposition of r as above, using the canonical cover?
This function will be called from the main program and when it returns to main, it will print out the values of HOTDOGS, HAMBURGERS,SALAD,PICKLES.
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Outline the primary ways in which the traditional approach to modeling a use case differs from an object-oriented approach. Develop a scenario in which you would use the traditional approach over the object-oriented approach, and explain your reasons..
Provide a well reasoned and support paper to accomplish the above requirements.
Draw a sequence diagram for the following use case. Draw only the first five messages sent. The FieldOfficer activates the "Report Emergency" function of her terminal. The system responds by presenting a form to the officer.
The Strayer Oracle Server may be used to test and compile the SQL Queries developed for this assignment. Your instructor will provide you with login credentials to a Strayer University maintained Oracle server.
Identify the make and model of one (1) laser printer and one (1) inkjet printer that are similarly priced. Evaluate the quality of each in terms of print speed (i.e., pages per minute), resolution (i.e., dots per inch), memory, color capability, d..
The primary difference between network-based IDS and IPS is that an IPS responds to suspected attacks by blocking network traffic, while an IDS only provides notification that suspicious traffic is observed
Write a complete C++ program that reworks your Cellular Bill calculation program from Chapter 4. Give your source file a meaningful name, such as CellBillFun.cpp.
Calculate the total raw score (add the scores) for each bowler. Display the bowler’s ID and total raw score. Rename the total raw score as Total Pins. Display match ID and the highest raw score for each match. Only display the results for bowlers wh..
Perform four unconstrained optimizations using the following values for the penalty parameter: R = 1 , 0 . 1 , 0 . 01, and 0 . 001.
Define the business requirements for the development of an HR system to support the objective of this request. Create a detailed system design and a project implementation plan required to complete the project.
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