Answered: hese values of N? N = 100; 2,500;…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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B+ Trees are very wide. If I say that I have a B+ tree with M nodes of order 170 and L nodes of order 30, then I insert a bunch of data (N elements), how tall would the tree be for these values of N? N = 100; 2,500; 30,000; 4,000,000; With B+ Tree who has M nodes of order 170 and L nodes of order 30. After I insert 4,000,000 elements it’s a pretty big tree. That said, if I have to update a record, how many disk reads and how many disk writes will be needed to make that happen?

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