721 search results - page 86 / 145 » Supporting top-k join queries in relational databases |
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ICDE
2009
IEEE
15 years 11 months ago
2009
IEEE
Auditing the changes to a database is critical for identifying malicious behavior, maintaining data quality, and improving system performance. But an accurate audit log is a histor...
MOBIDE
2006
ACM
15 years 3 months ago
2006
ACM
Composition of temporal and spatial properties of real world objects in a unified data framework results into Moving Object Databases (MOD). MODs are able to process, manage and a...
SEBD
1997
14 years 11 months ago
1997
Abstract. Multidimensional databases are large collections of data, often historical, used for sophisticated analysis oriented to decision making. This activity is supported by an ...
VLDB
1990
ACM
15 years 1 months ago
1990
ACM
In this paper, we describe a new indexing technique, the time indez, for improving the performance of certain classes of temporal queries. The time index can be used to retrieve v...
GVD
2001
14 years 11 months ago
2001
A flexible method to store XML documents in relational or object-relational databases is presented that is based on an adaptable fragmentation. Whereas most known approaches decom...