7607 search results - page 335 / 1522 » Querying data provenance |
187
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EDBT
2010
ACM
16 years 1 months ago
2010
ACM
Schemas, and more generally metadata specifying structural and semantic constraints, are invaluable in data management. They facilitate conceptual design and enable checking of da...
212
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EDBT
2006
ACM
16 years 7 months ago
2006
ACM
Ontology languages to represent ontologies exist in large numbers, and users who want to access or reuse ontologies can often be confronted with a language they do not know. Theref...
165
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QSIC
2005
IEEE
16 years 12 days ago
2005
IEEE
Many programs need to access data in a relational database. This is usually done by means of queries written in SQL. Although the language SQL is declarative, certain runtime erro...
179
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GIS
2010
ACM
15 years 5 months ago
2010
ACM
It is cost-effective for data owners to publicize their spatial databases via database outsourcing; however, data privacy and query integrity are major challenges. In this demonst...
219
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JIDM
2010
15 years 1 months ago
2010
The increasing volume of data stored as XML documents makes fragmentation techniques an alternative to the performance issues in query processing. Fragmented databases are feasible...