Suppose a relation is stored in a B+-tree file organization. Suppose secondaryindices store record identifiers that are pointers to records on disk. What is the extra cost due to the use of such logical record identifiers?

Suppose a relation is stored in a B+-tree file organization. Suppose secondaryindices store record identifiers that are pointers to records on disk. What is the extra cost due to the use of such logical record identifiers?

Programming Logic & Design Comprehensive

9th Edition

ISBN:9781337669405

Author:FARRELL

Publisher:FARRELL

Chapter8: Advanced Data Handling Concepts

Section: Chapter Questions

Problem 20RQ

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