Keyphrases
- xml documents
- databases
- database
- native xml databases
- xml databases
- xml data
- closely related
- data sets
- xml query evaluation
- xml elements
- markup language
- object oriented databases
- xml schema
- relational data
- data integration
- object oriented
- data model
- query processing
- semi structured
- xml queries
- xml retrieval
- xml format
- database systems
- metadata