1394 search results - page 23 / 279 » Executing Nested Queries |
151
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IS
2008
15 years 2 months ago
2008
In this paper we propose DFL -- a formal, graphical workflow language for dataflows, i.e., workflows where large amounts of complex data are manipulated, and the structure of the ...
134
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EUC
2005
Springer
15 years 8 months ago
2005
Springer
Abstract. Embedded systems have strict timing and code size requirements. Retiming is one of the most important optimization techniques to improve the execution time of loops by in...
121
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SEBD
1996
15 years 3 months ago
1996
Abstract. To select an optimal query evaluation strategy for a path query in an object-oriented database system one has to exploit the available index structures on the path. In a ...
211
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VLDB
2007
ACM
16 years 2 months ago
2007
ACM
The performance of XML database queries can be greatly enhanced by rewriting them using materialized views. We study the problem of rewriting a query using materialized views, whe...
182
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SIGMOD
2008
ACM
16 years 2 months ago
2008
ACM
The emergence of database languages with side effects, notably for XML, raises significant challenges for database compilers and optimizers. In this paper, we extend an algebra fo...