1611 search results - page 214 / 323 » Supporting Exploratory Queries in Databases |
244
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ICDE
2003
IEEE
16 years 5 months ago
2003
IEEE
Expressing complex OLAP queries using group-by, aggregation, and joins can be extremely difficult. As a result of this, many alternate ways of expressing such queries have been de...
150
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CIKM
2009
Springer
15 years 10 months ago
2009
Springer
RDF is a data model for representing labeled directed graphs, and it is used as an important building block of semantic web. Due to its flexibility and applicability, RDF has bee...
135
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EDBT
2010
ACM
15 years 9 months ago
2010
ACM
Most modern RDBMS depend on the query processing optimizer’s cost model to choose the best execution plan for a given query. Since the physical IO (PIO) is a costly operation to...
196
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VLDB
2007
ACM
16 years 4 months ago
2007
ACM
This paper presents two extensions for XQuery. The first extension allows the definition and processing of different kinds of windows over an input sequence; i.e., tumbling, slidi...
209
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SIGMOD
2005
ACM
16 years 4 months ago
2005
ACM
XQuery is considered to become the standard query language for XML documents. However, the complete XQuery syntax and semantics seem too complicated for research and educational p...