DATABASE SYSTEM CONCEPTS (LOOSELEAF)
7th Edition
ISBN: 9781260515046
Author: SILBERSCHATZ
Publisher: MCG
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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”...
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Chapter 25 Solutions
DATABASE SYSTEM CONCEPTS (LOOSELEAF)
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