69 search results - page 2 / 14 » Extending and inferring functional dependencies in schema tr... |
PVLDB
2010
13 years 3 months ago
2010
Database systems often use XML schema to describe the format of valid XML documents. Usually, this format is determined when the system is designed. Sometimes, in an already funct...
DEXAW
2006
IEEE
13 years 10 months ago
2006
IEEE
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 ...
CAISE
2006
Springer
13 years 8 months ago
2006
Springer
Heterogeneous Business Process Modeling (BPM) schemas have been a problem for business process management throughout the last couple of years. Although there are several standardiz...
ICDE
2007
IEEE
14 years 6 months ago
2007
IEEE
We propose a class of constraints, referred to as conditional functional dependencies (CFDs), and study their applications in data cleaning. In contrast to traditional functional ...
PODS
2012
ACM
11 years 7 months ago
2012
ACM
Over the past several decades, the study of conjunctive queries has occupied a central place in the theory and practice of database systems. In recent years, conjunctive queries h...