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Determine the number of levels in the index

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Reference no: EM132816570

Suppose that we have an employee table with 1,000,000 records. A single database page can store 100 records at a time

1. How many pages would be required to store the table?

2. How many pages would have to be accessed on disk in order to look up all employees named 'Chanandler Bong' without any indexes?

3. How many pages would have to be accessed on disk in order to look up an employee with ID 370,012 using a secondary index (i.e., one index entry per row)? Assume that one page holds 500 pointers. This requires you to determine how many levels an index would have.

4. How many pages would have to be accessed on disk in order to look up an employee with ID 370,012 using a clustered index (i.e., one index entry per page)? Assume that one page holds 500 pointers. This also requires you to determine the number of levels in the index, the only difference is that this time you are indexing pages not records.

Reference no: EM132816570

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