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» A Query Language for EER Schemas
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WWW
2007
ACM
16 years 3 months ago
Preserving XML queries during schema evolution
In XML databases, new schema versions may be released as frequently as once every two weeks. This poster describes a taxonomy of changes for XML schema evolution. It examines the ...
Mirella Moura Moro, Susan Malaika, Lipyeow Lim
CN
2002
86views more  CN 2002»
15 years 2 months ago
MSL: a model for W3C XML Schema
MSL (Model Schema Language) is an attempt to formalize some of the core idea in XML Schema. The benefits of a formal description is that it is both concise and precise. MSL has al...
Allen Brown, Matthew Fuchs, Jonathan Robie, Philip...
ODBIS
2007
Springer
157views Database» more  ODBIS 2007»
15 years 9 months ago
An Extension of SPARQL for RDFS
Abstract. RDF Schema (RDFS) extends RDF with a schema vocabulary with a predefined semantics. Evaluating queries which involve this vocabulary is challenging, and there is not yet...
Marcelo Arenas, Claudio Gutierrez, Jorge Pé...
AWIC
2005
Springer
15 years 8 months ago
Specifying Schema Mappings for Query Reformulation in Data Integration Systems
In data integration systems there is a problem of answering queries through a target schema, given a set of mappings between source schemas and the target schema, and given that th...
Tadeusz Pankowski
BNCOD
2004
99views Database» more  BNCOD 2004»
15 years 4 months ago
The EGTV Query Language
When storing data in heterogeneous databases, one of the top-down design issues concerns the usage of multiple query languages. A common language enables querying of database schem...
Damir Becarevic, Mark Roantree