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ADBIS
2005
Springer
78views Database» more  ADBIS 2005»
15 years 9 months ago
Schema-based Query Optimization for XQuery Queries
XQuery is widely used for querying XML documents. Within this paper, we examine optimization rules for XQuery queries that exploit type information of the input XML document given ...
Sven Groppe, Stefan Böttcher
SIGMOD
2010
ACM
249views Database» more  SIGMOD 2010»
15 years 4 months ago
Worry-free database upgrades: automated model-driven evolution of schemas and complex mappings
Schema evolution is an unavoidable consequence of the application development lifecycle. The two primary schemas in an application, the client conceptual object model and the pers...
James F. Terwilliger, Philip A. Bernstein, Adi Unn...
110
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ENDM
2008
87views more  ENDM 2008»
15 years 4 months ago
Computing Canonical Polygonal Schemata with Generalized Maps
This paper shows that a well-known algorithm proposed to compute the canonical polygonal schema of a surface can be transferred onto a 2-dimensional generalized map. We show that ...
Guillaume Damiand, Sylvie Alayrangues
ICSEA
2006
IEEE
15 years 10 months ago
A Partition-Based Approach for XPath Testing
—The XML language is becoming the preferred means of data interchange and representation in web based applications. Usually, XML data is stored in XML repositories, which can be ...
Claudio de la Riva, José García-Fanj...
SIGMOD
2008
ACM
164views Database» more  SIGMOD 2008»
16 years 4 months ago
Relational-style XML query
We study the problem of querying relational data embedded in XML. Relational data can be represented by various tree structures in XML. However, current XML query methods, such as...
Taro L. Saito, Shinichi Morishita