From Databases to Hypermedia: With 26 Cai Lessons [With For Windows]

ISBN-13: 9783540637547 / Angielski / Miękka / 1998 / 309 str.

Hermann A. Maurer; H. Maurer; Z. Halim

Opis

The number ofbooks on databases is very large. Thus, our decision to yet add another book to the body of literature requires some justification. However, even a cursory glance through this book will show that we have taken a rather different approach indeed when compared to monographs on databases. First, material ties together the well-known relational model with the newer and not yet as solidly established object oriented one and leads to data models for hypermedia system. This is unique and timely: the chaos on the World Wide Web is getting out of hand, and one ofthe main reasons is that the underlying data model is too weak. Second, the book is full of illustrations. And those illustrations are not only available in printed form, but also on a CD ROM. Actually, much more is true: for each ofthe 26 chapters, electronic courseware is available, one lesson per chapter. Third, the lessons described contain explanations that are easier or better to understand than those provided in the printed chapter, since a number ofdynamic and interactive features are used. Fourth, the lessons can be used in a variety ofmodes: as complement for the book; as stand-alone material instead ofthe book; as slides for the lecturer; and as help for the student. And, as explained below they can be easily modified.

Spis treści

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 Protocol.- 21.3 HTTP Protocol.- 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.

O autorze

Hermann Maurer studierte Mathematik und Physik in Österreich, Informatik in Kanada. Er war einige Jahre in der Industrie tätig, aber ist nun seit mehr als 30 Jahren Universitätsprofessor für Informatik an Universitäten in Kanada, USA, Deutschland, Brasilien, Australien, Neuseeland und vor allem an der Technischen Universität Graz in Österreich. Er ist mit zahlreichen wissenschaftlichen Büchern und über 500 wissenschaftlichen Publikationen in seinem Bereich der Informatik aktiv tätig, ist aber auch seit vielen Jahren schriftstellerisch aktiv, oft unter einem Pseudonym.

Blurb

This textbook is more than a standard introduction to databases: It is a comprehensive set of tools that makes the teaching and learning of basic facts about databases and hypermedia much easier. On an undergraduate level the basic ideas of relational, object-oriented, and hypermedia data models and databases are explained, both in printed form with many illustrations and in the form of 26 "lessons" of courseware. This relieves the instructor of much of the burden of preparing transparencies, and allows the students to repeat or study lecture material in electronic form that follows exactly the printed presentation. Please note that the software runs on Windows platforms only!