A query language allowing conditions of relational type queries.
Beata KonikowskaPublished in: Inf. Syst. (1985)
Keyphrases
- query language
- database query languages
- data model
- relational calculus
- expressive power
- query evaluation
- type checking
- relational algebra
- database
- relational data model
- aggregate functions
- xml query languages
- relational operators
- object oriented
- relational model
- sufficient conditions
- recursive queries
- complex objects
- regular expressions
- algebraic operations
- constraint databases
- high level query language
- relational tables
- transitive closure
- conjunctive queries
- temporal queries
- databases
- relational data
- xml data
- database management systems
- algebraic operators
- relational query languages
- relational database systems
- functional dependencies
- web search engines
- inductive databases
- query processing
- xml documents
- relational databases