Reverse data exchange: coping with nulls.

Ronald Fagin Phokion G. Kolaitis Lucian Popa Wang Chiew Tan

Published in: PODS (2009)

Keyphrases

data exchange
query answering
data integration
schema mappings
data management
peer data management systems
xml schema
database
data sets
data model
knowledge discovery
xml queries
data complexity
answering queries
digital campus