861 search results - page 53 / 173 » Relational Completeness of Query Languages for Annotated Dat... |
VLDB
1998
ACM
15 years 2 months ago
1998
ACM
We propose a multi-dimensional language called nD-SQL with the following features: (i) nD-SQL supports queries that interoperate amongst multiple relational sources with heterogen...
142
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ICDE
1998
IEEE
15 years 11 months ago
1998
IEEE
Algebraic transformation and optimization techniques have been the method of choice in relational query execution, but applying them in OODBMS is difficult due to the complexity o...
102
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DBPL
1997
Springer
15 years 1 months ago
1997
Springer
We consider spatial databases that can be defined in terms of polynomial inequalities, and we are interested in monotonic transformations of spatial databases. We investigate a hi...
LREC
2010
14 years 11 months ago
2010
Language users are increasingly turning to electronic resources to address their lexical information needs, due to their convenience and their ability to simultaneously capture di...
ICDT
2012
ACM
13 years 5 days ago
2012
ACM
The problems of query containment, equivalence, and minimization are recognized as very important in the context of query processing, specifically of query optimization. In their...