Query Languages for Relational Multidatabases
John GrantWitold LitwinNick RoussopoulosTimos K. SellisPublished in: VLDB J. (1993)
Keyphrases
- query language
- data model
- relational calculus
- expressive power
- relational algebra
- relational model
- relational operators
- relational databases
- aggregate functions
- relational data
- relational data model
- database query languages
- relational query languages
- xml query languages
- object oriented
- database
- complex objects
- xml data
- statistical relational learning
- relational learning
- temporal queries
- databases
- xml queries
- sql queries
- query evaluation
- conceptual model
- database management systems
- multi relational
- transitive closure
- entity relationship
- multidatabase systems
- database schema
- database design
- information extraction
- database systems
- data mining query language