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Data on the Web: From Relations to Semistructured Data and XML is an examination of XML as a universal data transfer language and the theory behind the merging of the document-centric Web with a data-driven infrastructure. The book is intended as a textbook analysis of the issues, as well as background material for tool developers and others interested in the serious architectural details.
Aimed at readers already familiar with database concepts, the book includes little introductory material. It quickly lays out the concepts of self-describing semi-structured data and how XML fits into this approach to data representation. The discussion deals with XML as a data transfer mechanism and not a presentation language. While there is a quick explanation of DTDs, Xlink, and XPointer, readers should be fairly familiar with XML before approaching this advanced title.
The meat of the book revolves around query languages for XML. The authors present XML-QL and XSL in depth as examples. Then they move into much more advanced concepts such as schema formalisms, path constraints, and storage architectures. The book wraps up with a look at Lore and Strudel--two real-world systems that work with semi-structured data. Because of its intensive study of database and query theory, this textbook isn't for the ordinary Web developer. If data architectures are your expertise, however, Data on the Web may open new design doors. --Stephen W. Plain
Topics covered: Object database models, basic XML syntax, UnQL, XML-QL, XSL, StruQL, schema formalisms, extracting schemas from queries, semistructured data servers, Lore, Strudel, and XML-based database products.
From Library Journal
Most data on the web are not well structured, making the search and retrieval process difficult since the spiders, robots, and other search engines don't really understand the context of the data they are indexing and storing. This very advanced book examines the new retrieval and processing techniques as semistructured data and XML (as a data transfer language) that aim to merge a document-based web with a data-driven infrastructure. Hardcore programmers will want this. Recommended for university and large public libraries.
Copyright 2000 Reed Business Information, Inc.
Copyright 2000 Reed Business Information, Inc.
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1 von 1 Kunden fanden die folgende Rezension hilfreich
Format:Gebundene Ausgabe
The book provides a wonderful link of the three concepts: Relation, Semistructured , and XML. The discussion is clear and concise. We know that Relation is well used in modelling enterprise data today, since the high performance of RDBMS . On the other hand, XML is well accepted the most suitable for business information representation. The author uniformed them under the banner of semistructured data model. The text drives the readers into the insight of the data world even though it is in the abstract level. Anyone can be benifitted by reading it if he want to go deep in the XML and data world.
1 von 1 Kunden fanden die folgende Rezension hilfreich
Format:Gebundene Ausgabe
Read this book and understand it unless you want to flounder around solving problems that these guys already thought through. The book is not a "how-to" guide, but rather a discussion of all the abstract concepts you need to master if you want to do things right. I found this book far more readable than some of the research these guys have published, and a very useful starting point for evaluating various products and technologies related to XML and web data.
1 von 1 Kunden fanden die folgende Rezension hilfreich
Format:Gebundene Ausgabe
For the most part, this book covers the academic research on semistructured database management that started in the mid-90s (pre-dating the XML explosion - sometimes research is ahead of practice!). Such issues are not that interesting for folks who are doing bread-and-butter client-side XML development, and whose interest in "XML" and "databases" is limited to knowing how Oracle 8i implements its "XML out the top" package. However, the book is relevant to people who are already "in" the semistructured data management space - people who are thinking ahead to some of the potential directions that XML query languages might take, for example. The authors are prominent and well-respected in this area.
One of my main beefs with the book is that it does not really say anything about what XML databases might look like in practice. This is a tall and perhaps unfair order, since we don't yet have standards for XML schemas and query languages. But I have yet to see XML database proponents provide a clear and convincing explanation of why XML is going to be a way to structure stored data as well as a way of transmitting and reformatting data.
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Required reading
Read this book and understand it unless you want to flounder around solving problems that these guys already thought through. Lesen Sie weiter...
Veröffentlicht am 17. Mai 2000 von Joshua Allen
This Book is Aimed at a Limited Audience
I should have listened to "this textbook isn't for the ordinary Web developer", not "this book is a must for all people interested in XML! Lesen Sie weiter...
Veröffentlicht am 31. Januar 2000 von Roger T Cutler
This great book is obligatory for people working with XML !
This book gives an excellent introduction into the formal framework underlying XML. It exposes an important connection between XML and the existing research in databases about the... Lesen Sie weiter...
Am 21. Oktober 1999 veröffentlicht
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