Keyphrases
- xml schema
- xml data
- xml documents
- xml queries
- object oriented
- data model
- xml databases
- relational databases
- regular expressions
- query optimization
- query evaluation
- markup language
- data warehouse
- database design
- relational data
- native xml
- query language
- query processing
- data exchange
- semi structured data
- keyword search
- xpath queries
- conceptual model
- conceptual modeling
- relational schema
- integrity constraints
- relational model
- data sources
- sql queries
- high level
- labeling scheme
- database