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Relational XML Data Exchange Synthesis Lectures on Data Management 9781608454112
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Located in: Welwyn Garden City, United Kingdom
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eBay item number:234548454336
Item specifics
- Condition
- Brand New: A new, unread, unused book in perfect condition with no missing or damaged pages. See all condition definitionsopens in a new window or tab
- ISBN
- 9781608454112
- Publication Year
- 2010
- Type
- Textbook
- Format
- Paperback
- Language
- English
- Publication Name
- Relational and Xml Data Exchange
- Item Height
- 235mm
- Publisher
- Morgan & Claypool Publishers
- Item Width
- 187mm
- Subject
- Computer Science
- Number of Pages
- 112 Pages
About this product
Product Information
Data exchange is the problem of finding an instance of a target schema, given an instance of a source schema and a specification of the relationship between the source and the target. Such a target instance should correctly represent information from the source instance under the constraints imposed by the target schema, and it should allow one to evaluate queries on the target instance in a way that is semantically consistent with the source data. Data exchange is an old problem that re-emerged as an active research topic recently, due to the increased need for exchange of data in various formats, often in e-business applications. In this lecture, we give an overview of the basic concepts of data exchange in both relational and XML contexts. We give examples of data exchange problems, and we introduce the main tasks that need to addressed. We then discuss relational data exchange, concentrating on issues such as relational schema mappings, materializing target instances (including canonical solutions and cores), query answering, and query rewriting. After that, we discuss metadata management, i.e., handling schema mappings themselves. We pay particular attention to operations on schema mappings, such as composition and inverse. Finally, we describe both data exchange and metadata management in the context of XML. We use mappings based on transforming tree patterns, and we show that they lead to a host of new problems that did not arise in the relational case, but they need to be addressed for XML. These include consistency issues for mappings and schemas, as well as imposing tighter restrictions on mappings and queries to achieve tractable query answering in data exchange.
Product Identifiers
Publisher
Morgan & Claypool Publishers
ISBN-13
9781608454112
eBay Product ID (ePID)
93378573
Product Key Features
Publication Name
Relational and Xml Data Exchange
Format
Paperback
Language
English
Subject
Computer Science
Publication Year
2010
Type
Textbook
Number of Pages
112 Pages
Dimensions
Item Height
235mm
Item Width
187mm
Additional Product Features
Series Title
Synthesis Lectures on Data Management
Country/Region of Manufacture
United States
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eBay item number:234548454336
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