568 search results - page 80 / 114 » Query by table |
SIGMOD
2004
ACM
15 years 10 months ago
2004
ACM
The rich dependency structure found in the columns of real-world relational databases can be exploited to great advantage, but can also cause query optimizers--which usually assum...
171
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SIGMOD
2008
ACM
15 years 10 months ago
2008
ACM
To deal with data uncertainty, existing probabilistic database systems augment tuples with attribute-level or tuple-level probability values, which are loaded into the database al...
165
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ICDE
2007
IEEE
15 years 11 months ago
2007
IEEE
Authorization in SQL is currently at the level of tables or columns. Many applications need a finer level of control. We propose a model for fine-grained authorization based on ad...
KDD
2008
ACM
15 years 10 months ago
2008
ACM
We present a prototype of an inductive database. Our system enables the user to query not only the data stored in the database but also generalizations (e.g. rules or trees) over ...
SIGMOD
2004
ACM
15 years 10 months ago
2004
ACM
Sovereign information sharing allows autonomous entities to compute queries across their databases in such a way that nothing apart from the result is revealed. We describe an imp...