Keyphrases
- data model
- query language
- database systems
- object oriented
- data modeling
- relational model
- data integration
- databases
- data types
- database
- database design
- data sources
- xml data
- relational algebra
- database management systems
- xml documents
- logical data model
- semi structured
- relational data model
- conceptual model
- high level
- bayesian networks
- object model
- database integration
- semantic data model
- knowledge representation