433 search results - page 66 / 87 » Querying and Maintaining Ordered XML Data using Relational D... |
170
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SIGMOD
2008
ACM
15 years 12 months ago
2008
ACM
Today's enterprise databases are large and complex, often relating hundreds of entities. Enabling ordinary users to query such databases and derive value from them has been o...
127
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DBPL
1993
Springer
15 years 3 months ago
1993
Springer
In this paper we study the expressive power of query languages for nested bags. We de ne the ambient bag language by generalizing the constructs of the relational language of Brea...
176
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SIGMOD
2008
ACM
15 years 12 months ago
2008
ACM
Database archiving is important for the retrieval of old versions of a database and for temporal queries over the history of data. We demonstrate XArch, a management system for ma...
114
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WWW
2008
ACM
16 years 12 days ago
2008
ACM
Efficiently querying RDF [1] data is being an important factor in applying Semantic Web technologies to real-world applications. In this context, many efforts have been made to st...
122
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EDBT
2012
ACM
13 years 2 months ago
2012
ACM
In this paper we consider the problem of answering queries using views, with or without ontological constraints, which is important for data integration, query optimization, and d...