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 15, Problem 4PE
Explanation of Solution
Justification:
The indexed nested loop join
- If there are many tuples in the inner relation with the same va...
Explanation of Solution
Reducing the cost of retrieving tuples of the inner relation:
- To reduce this cost the user can perform a join of the outer relation tuples with just the secondary index leaf e...
Explanation of Solution
Efficient condition:
- Hybrid merge join needs the outer relation to be sorted.
- The above mentioned algorithm does not have this requirement, but for each tuple in the outer relation it needs...
Expert Solution & Answer
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