Modifying Queries on Complex Objects in Database Federations.
Mark W. W. VermeerPeter M. G. ApersPublished in: Int. J. Cooperative Inf. Syst. (1997)
Keyphrases
- complex objects
- query language
- database
- relational calculus
- database query languages
- data model
- relational data model
- database queries
- expressive power
- query evaluation
- relational algebra
- relational database systems
- object representations
- relational model
- databases
- cad cam
- database systems
- invariant recognition
- nested relations
- database programming language
- class hierarchies
- multiple range images
- database management systems
- indexing methods
- data management
- query processing
- relational databases
- recursive queries
- distance function
- multiple inheritance
- xml data
- xml documents
- feature space
- data sets