Question: Consider the SUPPLIER, PART, and SHIPMENT relations and distributed database mentioned in the section on query optimization in this chapter. a. Write a global SQL

Consider the SUPPLIER, PART, and SHIPMENT relations and distributed database mentioned in the section on query optimization in this chapter.

a. Write a global SQL query (submitted in Columbus) to display the PartNumber and Color for every part that is not supplied by a supplier in Chicago.

b. Design three alternative query-processing strategies for your answer to part a.

c. Develop a table similar to Table 12-2 to compare the processing times for these three strategies.

d. Which of your three strategies was best and why?

e. Would data replication or horizontal or vertical partitioning of the database allow you to create an even more efficient query-processing strategy? Why or why not?

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