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This handbook is more than a standard introduction to databases; it is a comprehensive set of tools that makes learning basic database and hypermedia concepts much easier. The basic ideas and architecture of relational and object-oriented databases are presented, followed by hypermedia systems, hypermedia and the Internet, second generation hypermedia, and hypermedia data models. The material is presented in both printed form with many illustrations and in the form of 26 interactive electronic lessons for Windows.
I. Databases and the Relational Data Model.- 1 Introduction to Databases.- 1.1 Introduction.- 1.2 Information Model.- 1.3 Database Management.- 1.4 Database Languages.- 1.5 Data Protection.- 2 Basic Relational Data Model.- 2.1 Introduction.- 2.2 Relation.- 2.3 Properties of a Relation.- 2.4 Keys of a Relation.- 2.5 Relational Schema.- 3 Data Updating Facilities.- 3.1 Introduction.- 3.2 Data Manipulation Facilities.- 3.3 User Interface.- 3.4 Integrity.- 3.5 Database Transactions.- 4 Normalisation.- 4.1 Introduction.- 4.2 First Normal Form (1NF).- 4.3 Functional Dependencies.- 4.4 Second Normal Form (2NF).- 4.5 Third Normal Form (3NF).- 5 Relational Algebra I.- 5.1 Relational Algebra and Relational Calculus.- 5.2 Overview of Relational Algebra.- 5.3 Selection.- 5.4 Projection.- 5.5 Natural Join.- 6 Relational Algebra II.- 6.1 Introduction.- 6.2 Division.- 6.3 Set Operations.- 6.4 Null values.- 6.5 Optimisation.- 7 Relational Calculus I.- 7.1 Introduction.- 7.2 Tuple Variables.- 7.3 Quantifiers.- 7.4 Well-Formed Formulae.- 8 Relational Calculus II.- 8.1 The Data Sub-Language Alpha.- 8.2 Relational Calculus with Domain Variables.- 9 Data Sub-Language SQL.- 9.1 Introduction.- 9.2 Operations.- 9.3 Further Retrieval Facilities.- 9.4 Library Functions and Arithmetic Expressions.- 9.5 Additional Facilities.- 10 Query-By-Example (QBE).- 10.1 Introduction.- 10.2 Variables and Constants.- 10.3 Example Elements.- 10.4 The Prefix ALL.- 10.5 Library Functions.- 11 Architecture of Database Systems.- 11.1 Introduction.- 11.2 Data Abstraction.- 11.3 Data Administration.- 11.4 Data Independence.- 11.5 Data Protection.- 11.6 Further Reading.- II. Object-Oriented Databases.- 12 Abstract Data Objects.- 12.1 Introduction.- 12.2 Abstract Data Objects.- 12.3 Methods.- 12.4 Messages.- 12.5 Summary.- 13 Data Classes.- 13.1 Introduction.- 13.2 Data Classes.- 13.3 Definition of Private Memory.- 13.4 Definition of Methods.- 13.5 Summary.- 14 Dynamic Binding and User Interface.- 14.1 Introduction.- 14.2 User Interface and System Data Classes.- 14.3 Dynamic Binding.- 14.4 Summary.- 15 Static Inheritance.- 15.1 Introduction.- 15.2 Static Inheritance of Properties.- 15.3 Abstract Data Classes.- 15.4 Definition of an Object-Oriented DBMS.- 15.5 Summary.- 16 Dynamic and Multiple Inheritance.- 16.1 Introduction.- 16.2 Dynamic Inheritance.- 16.3 Multiple Inheritance.- 16.4 Summary.- 17 Object Identity and Database Query.- 17.1 Introduction.- 17.2 Object Identity and Addressability.- 17.3 Query Expressions.- 17.4 Summary.- 18 Metalevel Facilities and Database Architecture.- 18.1 Introduction.- 18.2 Metavariables and Metaclasses.- 18.3 Architecture of Object-Oriented Database Systems.- 18.4 Summary and Conclusion.- 18.5 Further Reading.- III. Hypermedia.- 19 Introduction to Multimedia.- 19.1 Introduction.- 19.2 Media Object.- 19.3 Multimedia Documents.- 19.4 Multimedia Authoring.- 19.5 Multimedia Databases and Hypermedia.- 20 Basic Node-Link Paradigm.- 20.1 Introduction.- 20.2 Node-Link Model.- 20.3 Anchors.- 20.4 Browsing.- 20.5 Problems with the Node-Link Model.- 21 Internet and Hypermedia.- 21.1 Introduction.- 21.2 TCP/IP Prool.- 21.3 HTTP Prool.- 21.4 World-Wide Web (WWW).- 22 HyperText Mark-up Language (HTML).- 22.1 Introduction.- 22.2 Text Mark-up.- 22.3 Lists and Tables.- 22.4 Inline Objects.- 22.5 References to other Documents.- 23 Interaction over the WWW.- 23.1 Introduction.- 23.2 HTML Forms.- 23.3 JAVA Applets.- 23.4 Publishing and Searching Documents.- 23.5 E-Mails and News.- 23.6 Other Interactions.- 24 Second Generation Hypermedia I.- 24.1 Introduction.- 24.2 Metainformation.- 24.3 Collections.- 24.4 Sequences.- 24.5 Conclusion.- 25 Second Generation Hypermedia II.- 25.1 Introduction.- 25.2 HyperLinks.- 25.3 Alternative Cluster.- 25.4 MultiCluster.- 25.5 Conclusion.- 26 HM-Data Model.- 26.1 Introduction.- 26.2 Data Structures.- 26.3 Browsing.- 26.4 Data Classes.- 26.5 Illustrative Example.- 26.6 Creating and Modifying a Database.- 26.7 Conclusion.- 26.8 Further Reading.
Overview
This handbook is more than a standard introduction to databases; it is a comprehensive set of tools that makes learning basic database and hypermedia concepts much easier. The basic ideas and architecture of relational and object-oriented databases are presented, followed by hypermedia systems, hypermedia and the Internet, second generation hypermedia, and hypermedia data models. The material is presented in both printed form with many illustrations and in the form of 26 interactive electronic lessons for ...