Title page for ETD etd-010608-234057

Document Type thesis

Author Name Jiang, Ming

Email Address cs_jiangming at hotmail.com

URN etd-010608-234057

Title Updating Views Over Recursive XML

Degree MS

Department Computer Science

Advisors
Murali Mani, Advisor
Dan Dougherty, Reader

Keywords
Database
XML
View Update

Date of Presentation/Defense 2007-12-20

Availability unrestricted

Abstract
We study the problem of updating XML views defined over XML documents. A
view update is performed by finding the base updates over the underlying
data sources that achieve the desired view update. If such base updates do
not exist, the view update is said to be untranslatable and rejected. In
SQL, determining whether a view update is translatable is performed using
schema level analysis, where the view definition and the base schema are
used. XML schemas are more complex than SQL schemas, and can specify
recursive types and cardinality constraints.

There are two kinds of view updates: single view element update, where the
user requires for an update over a particular view element, and a set of
view elements update, where the user requires for an update over all view
elements that satisfy a given XPath over the view. Accordingly, we propose
one solution for each kind of view update problems based on schema level
analysis for determining whether an update over XML views is translatable
and for finding the translation if one exists, while considering the
features of XML schemas.

Files
masterthesis.pdf

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Document Type	thesis
Author Name	Jiang, Ming
Email Address	cs_jiangming at hotmail.com
URN	etd-010608-234057
Title	Updating Views Over Recursive XML
Degree	MS
Department	Computer Science
Advisors	Murali Mani, Advisor Dan Dougherty, Reader
Keywords	Database XML View Update
Date of Presentation/Defense	2007-12-20
Availability	unrestricted
Abstract We study the problem of updating XML views defined over XML documents. A view update is performed by finding the base updates over the underlying data sources that achieve the desired view update. If such base updates do not exist, the view update is said to be untranslatable and rejected. In SQL, determining whether a view update is translatable is performed using schema level analysis, where the view definition and the base schema are used. XML schemas are more complex than SQL schemas, and can specify recursive types and cardinality constraints. There are two kinds of view updates: single view element update, where the user requires for an update over a particular view element, and a set of view elements update, where the user requires for an update over all view elements that satisfy a given XPath over the view. Accordingly, we propose one solution for each kind of view update problems based on schema level analysis for determining whether an update over XML views is translatable and for finding the translation if one exists, while considering the features of XML schemas.
Files	masterthesis.pdf