is data independence, and why is it missing in file systems, and how does it work?

Database Systems: Design, Implementation, & Management
12th Edition
ISBN:9781305627482
Author:Carlos Coronel, Steven Morris
Publisher:Carlos Coronel, Steven Morris
Chapter16: Database Administration And Security
Section: Chapter Questions
Problem 40RQ: In Oracle, what is a datafile? How does it differ from a file systems file?
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What is data independence, and why is it missing in file systems, and how does it work?

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