On the Completeness of Query Languages for Relational Data Bases.
François BancilhonPublished in: MFCS (1978)
Keyphrases
- query language
- data model
- databases
- relational calculus
- relational algebra
- relational databases
- database systems
- expressive power
- relational query languages
- database query languages
- relational model
- database
- relational operators
- structured query language
- xml query languages
- relational data model
- relational data
- aggregate functions
- database management systems
- object oriented
- recursive queries
- information extraction
- visual query language
- legal information
- xml documents
- constraint databases
- entity relationship
- relational learning
- data sources
- database schema
- conjunctive queries
- multi relational
- normal form
- graph databases
- complex objects
- query evaluation
- type checking
- knowledge discovery
- data integration
- xml data
- data base management
- algebraic operators
- database technology