Sciweavers

IDA
2000
Springer
13 years 4 months ago
Discovery of multivalued dependencies from relations
Discovery of multivalueddependenciesfrom database relations isviewed as a search in a hypothesis space de ned according to the generalisation relationship among multivalued depend...
Iztok Savnik, Peter A. Flach
CATS
2006
13 years 6 months ago
On the Logical Implication of Multivalued Dependencies with Null Values
The implication of multivalued dependencies (MVDs) in relational databases has originally been defined in the context of some fixed finite universe (Fagin 1977, Zaniolo 1976). Whi...
Sebastian Link
DEXAW
2006
IEEE
111views Database» more  DEXAW 2006»
13 years 11 months ago
A Strongly Minimal Axiomatisation of Multivalued Dependencies in Incomplete Database Relations
We study inference rules for multivalued dependencies in relational databases with null values (NMVDs). The definition of NMVDs is dependent on the underlying relation schema and ...
Sebastian Link