Keyphrases
- advanced features
- xml documents
- xml data
- markup language
- programming language
- data exchange
- databases
- xml databases
- learning perl
- relational databases
- data integration
- data model
- semi structured
- object oriented
- xml schema
- xml format
- database
- xpath queries
- object oriented programming
- development environment
- xml queries
- network security
- relational data
- data representation
- xml retrieval
- semistructured data
- semi structured data
- relational database systems
- metadata
- topic maps
- object oriented databases
- information retrieval
- document centric