Keyphrases
- xml views
- relational databases
- relational data
- incremental maintenance
- query rewriting
- xml documents
- data exchange
- xml data
- xml queries
- semi structured data
- xpath queries
- materialized views
- relational schema
- binary data
- database
- xml databases
- xml schema
- databases
- query optimization
- relational model
- query answering
- normal form
- data objects
- structured data
- database management systems
- data sets
- data model