Result: empty because no tuples satisfy the result. Also show the result of each query as it would apply to the database state of Figure 3. Answers: In the relational algebra, as in other languages, it is possible to specify the same query in multiple ways. We give one possible solution for each query. Referential integrity constraints are shown as directed arcs in Figure 6.
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Solutions Manual Fundamentals of Database Systems 6th Edition Elmasri, Navathe ISBN ISBN Clear explanations of theory and design, broad coverage of models and real systems, and an up-to-date introduction to modern database technologies result in a leading introduction to database systems. A lab manual and problems give students opportunities to practice the fundamentals of design and implementation. Real-world examples serve as engaging, practical illustrations of database concepts.
The Sixth Edition maintains its coverage of the most popular database topics, including SQL, security, and data mining, and features increased emphasis on XML and semi-structured data. Tables Of Content: Chapter 1. Databases and Database Users Chapter 2.
Database System Concepts and Architecture Chapter 3. Basic SQL Chapter 5. Object and Object-Relational Databases Chapter Indexing Structures for Files Chapter Algorithms for Query Processing and Optimization Chapter Physical Database Design and Tuning Chapter Concurrency Control Techniques Chapter Database Recovery Techniques Chapter
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