Construct a B+-tree for the following set of key values: (2, 3, 5, 7, 11, 17, 19, 23, 29, 31) Assume that the tree is initially empty and values are added in ascending order. Construct B+-trees for the cases where the number of pointers that will fit in one node is as follows:
Answer to relevant QuestionsFor each B+-tree as shown below show the steps involved in the following queries:a. Find records with a search-key value of 11.b. Find records with a search-key value between 7 and 17, inclusive.(2, 3, 5, 7, 11, 17, 19, 23, ...What are the causes of bucket overflow in a hash file organization? What can be done to reduce the occurrence of bucket overflows?Consider the account relation as shown below.a. Construct a bitmap index on the attributes branch-name and balance, dividing balance values into 4 ranges: below 250, 250 to below 500, 500 to below 750, and 750 and above.b. ...Design a variant of the hybrid merge–join algorithm for the case where both relations are not physically sorted, but both have a sorted secondary index on the join attributes.Consider the relations r1 (A, B, C), r2 (C, D, E), and r3 (E, F), with primary keys A, C, and E, respectively. Assume that r1 has 1000 tuples, r2 has 1500 tuples, and r3 has 750 tuples. Estimate the size of r1 Θ r2 ...
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