Keyphrases
- databases
- database objects
- relational databases
- data integration
- data model
- xml documents
- database
- knowledge discovery
- d objects
- relational database systems
- xml data
- metadata
- data retrieval
- markup language
- object types
- object model
- data objects
- semi structured
- spatial relationships
- object classes
- data exchange
- multiple objects
- data types
- attribute values
- xml queries
- database applications
- object oriented
- xml format
- data sources