
EBK DATABASE SYSTEM CONCEPTS
7th Edition
ISBN: 9781260049268
Author: SILBERSCHATZ
Publisher: MCG COURSE
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Chapter 13, Problem 12E
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Allocation of records to blocks:
- The files are organized logically as a sequence of records. These sequences of records are mapped onto disk blocks.
- The files are provided as a basic construct in
operating systems. - In two ways, the logical models can be represented in terms of files.
- One approach is to map the
database to files is to use several files and to store records of only one fixed length in any given file. - The second approach is to structure the files as accommodating multiple length for records...
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EBK DATABASE SYSTEM CONCEPTS
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