349 search results - page 15 / 70 » Query Rewriting for Semistructured Data |
127
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ISMIS
2003
Springer
15 years 7 months ago
2003
Springer
Object-Relational database management system is an integrated hybrid cooperative approach to combine the best practices of both the relational model utilizing SQL queries and the ...
152
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WWW
2011
ACM
14 years 8 months ago
2011
ACM
The problem of answering SPARQL queries over virtual SPARQL views is commonly encountered in a number of settings, including while enforcing security policies to access RDF data, ...
116
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DASFAA
2005
IEEE
15 years 7 months ago
2005
IEEE
: Semi-structured data has become more and more attention-getting with the emergence of XML, and it has aroused much enthusiasm for integrating XML and SQL in database community. D...
136
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SIGMOD
2004
ACM
16 years 2 months ago
2004
ACM
We study the problem of answering queries through a target schema, given a set of mappings between one or more source schemas and this target schema, and given that the data is at...
129
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CLEANDB
2006
ACM
15 years 3 months ago
2006
ACM
An important reality when integrating scientific data is the fact that data may often be "missing", partially specified, or conflicting. Therefore, in this paper, we pre...