Answered: s may contain a lot of properties in…

s may contain a lot of properties in certain applications, with the majority of them being null. Is it possible to change the record representation such th

Systems Architecture

7th Edition

ISBN:9781305080195

Author:Stephen D. Burd

Publisher:Stephen D. Burd

Chapter8: Data And Network Communication Technology

Section: Chapter Questions

Problem 41VE

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A null bitmap is used to indicate whether an attribute has a null value in the variable-length record format. Tuples may contain a lot of properties in certain applications, with the majority of them being null. Is it possible to change the record representation such that the null bitmap's single bit is the sole cost for a null attribute?

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