EBK DATABASE SYSTEM CONCEPTS
7th Edition
ISBN: 9781260049268
Author: SILBERSCHATZ
Publisher: MCG COURSE
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Chapter 16, Problem 23E
a.
Explanation of Solution
To maintain the result of union and set difference operation:
- The output of two query expressions can be combined into a single result using “UNION” operator.
- The query expressions are independently executed and the resultant output is combined into a single result table...
b.
Explanation of Solution
To maintain the result of left outer join operation:
- The result of query expression is calculated using “INTERSECT” operator...
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Chapter 16 Solutions
EBK DATABASE SYSTEM CONCEPTS
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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