164 search results - page 13 / 33 » A Relational Algebra for Functional Logic Deductive Database... |
104
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VLDB
1994
ACM
15 years 2 months ago
1994
ACM
Expert database systems extend the functionality of conventional database systems by providing a facility for creating and automatically executing Condition-Action rules. While Con...
LPNMR
1990
Springer
15 years 1 months ago
1990
Springer
We present a general theory for the use of negative premises in the rules of Transition System Specifications (TSSs). We formulate a criterion that should be satisfied by a TSS in ...
177
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SIGMOD
2008
ACM
15 years 10 months ago
2008
ACM
Many scientific, financial, data mining and sensor network applications need to work with continuous, rather than discrete data e.g., temperature as a function of location, or sto...
ICDT
2012
ACM
13 years 9 days ago
2012
ACM
We introduce a new normal form, called essential tuple normal form (ETNF), for relations in a relational database where the constraints are given by functional dependencies and jo...
183
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ICDE
2007
IEEE
15 years 11 months ago
2007
IEEE
Logical constraints, (e.g., 'phone numbers in toronto can have prefixes 416, 647, 905 only'), are ubiquitous in relational databases. Traditional integrity constraints, ...