DATABASE SYSTEM CONCEPTS (LOOSELEAF)
7th Edition
ISBN: 9781260515046
Author: SILBERSCHATZ
Publisher: MCG
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Chapter 16, Problem 14PE
Explanation of Solution
Explanation:
- The System R optimizer only considers left-deep join, and it is specified in Section 16.4 of the textbook.
- To compute the optimal join order, constant time is required for any pair of subset (say “A” and “B”).
- Subset “A” can denote
- Only a single relation can appear as the right side of the topmost join and this is the reason to consider only “k” size.
- Therefore, the optimal join order is calculated in
- The optimal join order will be calculated for all the
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Chapter 16 Solutions
DATABASE SYSTEM CONCEPTS (LOOSELEAF)
Ch. 16 - Prob. 2PECh. 16 - Prob. 3PECh. 16 - SQL allows relations with duplicates (Chapter 3),...Ch. 16 - Prob. 5PECh. 16 - Prob. 6PECh. 16 - Prob. 7PECh. 16 - Prob. 8PECh. 16 - Prob. 9PECh. 16 - Prob. 10PECh. 16 - Prob. 12PE
Ch. 16 - Prob. 13PECh. 16 - Prob. 14PECh. 16 - Prob. 16ECh. 16 - Prob. 17ECh. 16 - Prob. 19ECh. 16 - Explain how to use a histogram to estimate the...Ch. 16 - Prob. 21ECh. 16 - Prob. 22ECh. 16 - Describe how to incrementally maintain the results...Ch. 16 - Prob. 24ECh. 16 - Prob. 25ECh. 16 - Prob. 26ECh. 16 - Prob. 27E
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