Null Values and Chase in Distributed Information Systems.
Agnieszka Dardzinska-GlebockaPublished in: KES (2004)
Keyphrases
- distributed information systems
- null values
- data dependencies
- functional dependencies
- normal form
- integrity constraints
- distributed databases
- relational databases
- information systems
- query answering
- load balancing
- query evaluation
- conjunctive queries
- database design
- data security
- incomplete information
- update operations
- relational algebra
- relational model
- databases
- multi valued
- storage management
- database
- xml documents
- query language
- database applications
- data management
- database schema
- multi agent systems
- distributed systems