3836 search results - page 352 / 768 » Semantics of Database Transformations |
181
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ECOOPW
1999
Springer
15 years 9 months ago
1999
Springer
In many application scenarios the database is changing quite rapidly. Because the management of such data is rather expensive and cumbersome, many applications like data warehouse...
153
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DEXA
2000
Springer
15 years 8 months ago
2000
Springer
This paper is mainly concerned with the extension of database management systems querying capabilities, so that users may address queries involving preferences and get discriminate...
SIGMOD
1987
ACM
15 years 8 months ago
1987
ACM
In this paper we discuss extensions to the conventional relatronal algebra to support transaction time We show that these extensions are applicable to hrstorlcal algebras that sup...
165
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CORR
2010
Springer
15 years 5 months ago
2010
Springer
Time is one of the most difficult aspects to handle in real world applications such as database systems. Relational database management systems proposed by Codd offer very little ...
142
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VLDB
2007
ACM
15 years 11 months ago
2007
ACM
This paper reports our first set of results on managing uncertainty in data integration. We posit that data-integration systems need to handle uncertainty at three levels, and do...