Functional Queries in Datalog.
Stefano BastaSergio FlescaSergio GrecoPublished in: New Gener. Comput. (2002)
Keyphrases
- query language
- query answering
- relational calculus
- expressive power
- query processing
- answering queries
- database
- datalog queries
- complex queries
- query evaluation
- query logs
- efficient processing
- deductive databases
- database queries
- query containment
- database query languages
- response time
- relational query languages
- user queries
- relational algebra
- web search engines
- query formulation
- aggregate queries
- containment of conjunctive queries
- search queries
- ontology based data access
- xpath queries
- range queries
- integrity constraints
- logic programming
- information retrieval