Keyphrases
- xml data
- query language
- xml documents
- querying xml data
- xml format
- xml fragments
- horizontal fragmentation
- xml queries
- update operations
- xml processing
- xml schema
- query processing
- query language for xml
- case study
- xml query evaluation
- relational and xml data
- xml databases
- relational data
- expressive power
- information extraction
- data model