A Generalized Transitive Closure for Relational Queries.
Seppo SippuEljas Soisalon-SoininenPublished in: PODS (1988)
Keyphrases
- transitive closure
- relational queries
- query evaluation
- probabilistic databases
- expressive power
- first order logic
- sql queries
- conjunctive queries
- answering queries
- relational algebra
- query language
- spatial databases
- directed acyclic graph
- databases
- relational databases
- natural language
- labeling scheme
- database
- expert systems
- database systems