7593 search results - page 423 / 1519 » Querying XML Databases |
CORR
2011
Springer
14 years 10 months ago
2011
Springer
214
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VLDB
2007
ACM
16 years 27 days ago
2007
ACM
Testing a database engine has been and continues to be a challenging task. The space of possible SQL queries along with their possible access paths is practically unbounded. Moreo...
161
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BTW
2005
Springer
16 years 10 days ago
2005
Springer
: Optimizers in modern DBMSs utilize a cost model to choose an efficient query execution plan (QEP) among all possible ones for a given query. The accuracy of the cost estimates de...
185
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MFCS
2009
Springer
16 years 1 months ago
2009
Springer
We study visibly pushdown automata (VPA) models for expressing and evaluating queries, expressed using MSO formulas, on words with a nesting structure (like XML documents). We de�...