Keyphrases
- databases
- relational databases
- peer to peer
- data integration
- data model
- xml documents
- xml data
- database
- metadata
- data retrieval
- data management
- data sources
- xml databases
- data sharing
- overlay network
- data exchange
- database applications
- relational database systems
- knowledge discovery
- database systems
- markup language
- data formats
- xml query languages
- database objects
- extensible markup language
- database queries
- relational data
- query evaluation
- data types
- multimedia