Question: Consider the instructor relation shown in Figure 11.1 a. Construct a bitmap index on the attribute salary, dividing salary values into 4 ranges: below 50000,

Consider the instructor relation shown in Figure 11.1 a. Construct a

Consider the instructor relation shown in Figure 11.1 a. Construct a bitmap index on the attribute salary, dividing salary values into 4 ranges: below 50000, 50000 to below 60000, 60000 to below 70000, and 70000 and above b. Consider a query that requests all instructors in the Finance department with salary of 80000 or more. Outline the steps in answering the query, and show the final and intermediate bitmaps constructed to answer the query 10101 Srinivasan Comp. Si 65000 12121 Wu 15151Mozart 22222 Einstein 32343El Saicd 33456 Gold 45565 Katz 58583 Califieri Histo 76543 Singh 76766 Crick 83821Brandt 98345 Kim Finance Music Physics History Physics Comp. Sc 75000 40000 95000 60000 87000 62000 Finance Biol Comp. Sci 92000 Elec. En 72000 80000 Figure 11.1 Sequential file for instructor records

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