Extending SQL with Generalized Transitive Closure Functionality.
Shaul DarRakesh AgrawalPublished in: IEEE Trans. Knowl. Data Eng. (1993)
Keyphrases
- transitive closure
- recursive queries
- query language
- expressive power
- relational algebra
- aggregate functions
- constraint databases
- first order logic
- query evaluation
- data model
- directed acyclic graph
- database
- spatial databases
- relational databases
- sql queries
- object oriented
- query containment
- data types
- relational model
- complex objects
- labeling scheme
- database technology
- incomplete information
- bayesian networks
- machine learning