On the Containment Problem for Queries in Conjunctive Form with Negation.
Victor FeleaPublished in: Ershov Memorial Conference (2009)
Keyphrases
- containment of conjunctive queries
- query containment
- query evaluation
- datalog queries
- query processing
- query language
- conjunctive queries
- tree patterns
- query logs
- transitive closure
- set valued attributes
- query answering
- database
- complex queries
- response time
- web search engines
- logic programs
- regular path queries
- data structure
- databases