1394 search results - page 99 / 279 » Executing Nested Queries |
147
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DAWAK
2006
Springer
15 years 7 months ago
2006
Springer
We consider the problem of concurrent execution of multiple frequent itemset queries. If such data mining queries operate on overlapping parts of the database, then their overall I...
125
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EDBTW
2006
Springer
15 years 7 months ago
2006
Springer
Abstract. In recent times, the proliferation of spatial data on the Internet is beginning to allow a much larger audience to access and share data currently available in various Ge...
125
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BNCOD
1997
15 years 5 months ago
1997
With the substantial change of declarative query languages from plain SQL to the so-called \object SQLs", in particular OQL, there has surprisingly been not much change in the...
196
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IDEAS
2010
IEEE
15 years 2 months ago
2010
IEEE
Even though an effective cost-based query optimizer is of utmost importance for the efficient evaluation of XQuery expressions in native XML database systems, such a component is...
230
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SIGMOD
2008
ACM
16 years 4 months ago
2008
ACM
Supporting ranking queries in database systems has been a popular research topic recently. However, there is a lack of study on supporting ranking queries in data warehouses where...