Question: Consider a clustered B+tree on the search key k= (Alternative (2) for data entries) and the following queries: 1) a>=100 AND b=5 2) a=100 AND

Consider a clustered B+tree on the search key k= (Alternative (2) for data entries) and the following queries:

1) a>=100 AND b=5

2) a=100 AND b>=5

For each query, explain how to use the B+tree index to retrieve the query result. What is the search key value used for descending the tree (Assume that the minimum value for a,b,c is 0), how each term (condition) is checked, and which terms help reduce the IO cost and which terms do not. Assume that the number of data record pages is much larger than the number of data entry pages, therefore, you should use as many terms as possible to reduce the IO cost of retrieving data record pages.

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