Keyphrases
- relational model
- panel discussion
- relational databases
- data model
- database technology
- relational algebra
- complex objects
- functional dependencies
- relational database systems
- data modeling
- artificial intelligence in medicine
- spatial databases
- incomplete information
- conceptual model
- relational models
- nested relations
- statistical models
- databases
- data integration
- query language
- database systems
- data warehousing
- xml schema
- normal form
- expressive power
- spatial data
- database management systems
- object oriented
- knowledge base