Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Chapter 13, Problem 4PE
Explanation of Solution
a.
Advantages:
- The size of the file gets reduced.
- More number of records can be inserted...
Explanation of Solution
b.
Updating on insertion/deletion:
- At the time of insertion or deletion, check if the usage of the block has changed levels.
- In that case, update the corresponding bits...
Explanation of Solution
c.
Benefits of bitmap:
- When free space for a large record oor a set of records is sought, then it is needed to scan multiple free list entries before finding a proper sized one.
- Here in this situation, the overhead is higher...
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