2338 search results - page 65 / 468 » Using UML to model relational database operations |
207
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SIGMOD
2005
ACM
16 years 4 months ago
2005
ACM
This paper introduces RankSQL, a system that provides a systematic and principled framework to support efficient evaluations of ranking (top-k) queries in relational database syst...
242
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SIGMOD
2008
ACM
16 years 4 months ago
2008
ACM
Many scientific, financial, data mining and sensor network applications need to work with continuous, rather than discrete data e.g., temperature as a function of location, or sto...
138
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ICECCS
2009
IEEE
15 years 11 months ago
2009
IEEE
OMG’s Model-Driven Architecture (MDA) has emerged as a new approach for the development of software. For this, the Query/View/Transformation (QVT) standard plays a central role,...
184
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SDB
1995
15 years 7 months ago
1995
Most of work on partial information in databases asks which operations of standard languages, like relational algebra, can still be performed correctly in the presence of nulls. In...
138
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SP
1991
IEEE
15 years 7 months ago
1991
IEEE
In this paper we give a new decomposition algorithm that breaks a multilevel relation into single-level relations and a new recovery algorithmwhich reconstructs the original multi...