Database Interrogation Using Conjunctive Queries.
Michal BieleckiJan Van den BusschePublished in: ICDT (2003)
Keyphrases
- conjunctive queries
- database
- query language
- query evaluation
- query answering
- relational database theory
- data complexity
- databases
- database systems
- consistent query answering
- np complete
- integrity constraints
- decision procedures
- database management systems
- query rewriting
- special case
- data model
- probabilistic databases
- conjunctive regular path queries
- data exchange
- relational databases
- data management
- data sets
- database queries
- primary key
- answering queries
- datalog programs
- semistructured data
- relational queries
- bounded treewidth
- unions of conjunctive queries
- data analysis
- expressive power
- containment of conjunctive queries
- data mining
- answering queries using views