A Dichotomy in Consistent Query Answering for Primary Keys and Unary Foreign Keys.

Miika Hannula Jef Wijsen

Published in: CoRR (2022)

Keyphrases

foreign key
integrity constraints
consistent query answering
functional dependencies
query answering
relational databases
primary key
database schema
xml documents
database
conjunctive queries
xml schema
consistent answers
databases
null values