Keyphrases
- object oriented
- query language
- data model
- expressive power
- programming language
- object oriented databases
- relational databases
- database schema
- software engineering
- design patterns
- database design
- query evaluation
- constraint databases
- database applications
- database technology
- complex objects
- object oriented database systems
- conceptual model
- regular expressions
- transitive closure
- rdf data
- entity relationship
- xml data
- database management systems
- database
- object oriented modeling
- visual query language
- object oriented programming
- cost model
- conjunctive queries
- data sources
- database systems