257
click to vote
ICDT
13 years 10 months ago
2012 ACM 
Previous studies of incomplete XML documents have identified three main sources of incompleteness – in structural information, data values, and labeling – and addressed data ...
279
click to vote
ICDT
13 years 10 months ago
2012 ACM
A universal model of a database D and a set Σ of integrity constraints is a database that extends D, satisfies Σ, and is most general in the sense that it contains sound and co...
204
click to vote
ICDT
13 years 10 months 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...
258
click to vote
ICDT
13 years 10 months ago
2012 ACM
In a recent paper by Hellerstein [15], a tight relationship was conjectured between the number of strata of a Datalog¬ program and the number of “coordination stages” require...
219
click to vote
ICDT
13 years 10 months 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...
|
Database