Keyphrases
- concurrency control
- xml databases
- database systems
- database management systems
- relational databases
- xml data
- distributed databases
- xml queries
- xml documents
- fine grained
- distributed database systems
- semi structured
- nested transactions
- relational database systems
- transaction processing
- real time database systems
- xml trees
- materialized views
- scientific data
- b tree
- transaction management
- data model
- keyword search
- data management
- query optimization
- structured data
- data structure
- case study
- xml schema
- distributed environment
- search engine