Fundamentals of Database systems 3th edition PHẦN 2 docx

... be reserved for databases containing tens of terabytes. 5.1 .2 Storage of Databases Databases typically store large amounts of data that must persist over long periods of time. The data ... 128 . 5 .29 . Load the records of Exercise 5 .27 into an expandable hash file, using linear hashing. Start with a 1 Page 129 of 893 may be applied at a finer granularity by breaking...

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... Applications 750 27 .1 Databases on the World Wide Web 751 27 .2 Multimedia Databases 755 27 .3 Mobile Databases 760 27 .4 Geographic Information Systems 764 27 .5 Genome Data Management 770 27 .6 Digital ... Contents of This Edition 17 Guidelines for Using This Book 19 Acknowledgments 21 About the Authors 22 Part 1: Basic Concepts 23 Chapter 1: Databases and Database...

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... the result of the query, because the constraint that a relation is a set is not enforced. Figure 08. 02( a) shows the result of query Q0 on the database of Figure 07.06. 1 Page 21 3 of 893 Strictly ... relational databases, users were less concerned about migrating their database applications from other types of database systems for example, network or hierarchical s...

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... 10: Examples of Relational Database Management Systems: Oracle and Microsoft Access 10.1 Relational Database Management Systems: A Historical Perspective 10 .2 The Basic Structure of the Oracle ... should refer to the system manuals. 10 .2 The Basic Structure of the Oracle System 10 .2. 1 Oracle Database Structure 10 .2. 2 Oracle Processes 10 .2. 3 Oracle Startup a...

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... illustrate specific systems. 12. 6.1 Overview of the O2 System Data Definition in O2 Data Manipulation in O2 Overview of the O2 System Architecture In our overview of the O2 system, we first ... designing a relational database and an object database? 12. 12. Describe the steps of the algorithm for object database design by EER-to-OO mapping. 12. 13. What is the obj...

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... result of system implementation and tuning. 16 .2 The Database Design Process 16 .2. 1 Phase 1: Requirements Collection and Analysis 16 .2. 2 Phase 2: Conceptual Database Design 16 .2. 3 ... Note 2 In the second edition of this book, we used the notation (instead of to denote the projection of F on . Note 3 See Maier (1983) or Ullman (19 82) for a proof...

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... units of database processing. Transaction processing systems are systems with large databases and hundreds of concurrent users that are executing database transactions. Examples of such systems ... the cost of some of the join algorithms given in Section 18 .2. 3. The join operations are of the form R A=B S 1 Page 538 of 893 18.13. Consider SQL queries Q1, Q...

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... Database Security Issues 22 .1.1 Types of Security 22 .1 .2 Database Security and the DBA 22 .1.3 Access Protection, User Accounts, and Database Audits 22 .1.1 Types of Security Database security is ... Section 21 .5). Chapter 22 : Database Security and Authorization 22 .1 Introduction to Database Security Issues 22 .2 Discretionary Access Control Based on Gran...

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... 26 .1 Data Warehousing 26 .1.1 Terminology and Definitions 26 .1 .2 Characteristics of Data Warehouses 26 .1.3 Data Modeling for Data Warehouses 1 Page 723 of 893 budget2(Dname,Sal) :- dept(Dname,Ename,Sal) ... well as for providing explanations. 25 .7 Deductive Object-Oriented Databases 25 .7.1 Overview of DOODs 25 .7 .2 VALIDITY The emergence of deductive data...

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... 1 Page 796 of 893 Appendix D: An Overview of the Hierarchical Data Model (Fundamentals of Database Systems, Third Edition) D.1 Hierarchical Database Structures D .2 Integrity ... Query Systems for Databases: A Survey," Journal of Visual Languages and Computing, 8 :2, June 1997, pp. 21 5–60. Cattell, R., ed. [1993] The Object Database Standard: OD...

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