3225 search results - page 308 / 645 » Query Optimization by Stored Queries |
262
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ICDE
1997
IEEE
16 years 8 months ago
1997
IEEE
Query optimization is an integral part of relational database management systems. One important task in query optimization is selectivity estimation, that is, given a query P, we ...
210
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BTW
2007
Springer
16 years 27 days ago
2007
Springer
: Over the recent years, very little effort has been made to give XPath a proper algebraic treatment. The only laudable exception is the Natix Algebra (NAL) which defines the tran...
192
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ER
2007
Springer
16 years 26 days ago
2007
Springer
XML Schema supports the specification of occurrence constraints by declaring values for its min/maxOccurs attributes. These constraints are structural in the sense that they rest...
175
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OOPSLA
2007
Springer
16 years 25 days ago
2007
Springer
Current real-world software applications typically involve heavy use of relational and XML data and their query languages. Unfortunately object-oriented languages and database que...
180
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XSYM
2007
Springer
16 years 24 days ago
2007
Springer
To globally optimize execution plans for XQuery expressions, a plan generator must generate and compare plan alternatives. In proven compiler architectures, the unit of plan genera...