20024 search results - page 279 / 4005 » Database Management Systems |
126
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OODBS
2000
15 years 7 months ago
2000
Ever since the `early days' of database management systems, clustering has proven to be one of the most effective performance enhancement techniques for object oriented datab...
132
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SIGMOD
2001
ACM
16 years 4 months ago
2001
ACM
Users often need to optimize the selection of objects by appropriately weighting the importance of multiple object attributes. Such optimization problems appear often in operation...
148
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DPD
1998
15 years 3 months ago
1998
To meet users’ growing needs for accessing pre-existing heterogeneous databases, a multidatabase system (MDBS) integrating multiple databases has attracted many researchers recen...
133
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ALGORITHMICA
2008
15 years 3 months ago
2008
Hash tables on external memory are commonly used for indexing in database management systems. In this paper we present an algorithm that, in an asymptotic sense, achieves the best...
227
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SIGMOD
2009
ACM
16 years 4 months ago
2009
ACM
SQL tuning--the attempt to improve a poorly-performing execution plan produced by the database query optimizer-is a critical aspect of database performance tuning. Ironically, as ...