Database System Concepts
7th Edition
ISBN: 9781260084504
Author: Abraham Silberschatz, S. Sudarshan, Abraham, Henry Korth, Silberschatz Abraham, Silberschatz Professor
Publisher: McGraw-Hill Education
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Expert Solution & Answer
Chapter 25, Problem 3PE
Explanation of Solution
a.
Example for a given situation:
- The relation “r” is clustered by the attribute a in below case.
- Consider that the relation “r” is not clustered on the attribute “a”...
Explanation of Solution
b.
Justification:
- It is possible only when there is a mutual relationship between “a” and “b” attribute.
- The a-value attribute with tuples “t1” is less than the a-value attribute with tuples “t22&#x...
Explanation of Solution
c.
Suggestion:
- For both the queries the physical order of the tuples cannot be suited.
- To execute the query efficiently, “r” is clustered on 'a' and we have B+ tree index on “b”...
Expert Solution & Answer
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