Keyphrases
- xml documents
- relational databases
- xml data
- relational data
- keyword search
- sql queries
- xml databases
- relational model
- structured data
- object oriented
- functional dependencies
- xml schema
- database
- linked data
- database technology
- integrity constraints
- xml queries
- data dependencies
- data model
- stored in relational databases
- databases
- relational database systems
- normal form
- semantic information
- semi structured data
- entity relationship
- storing and querying xml
- data types
- relational tables
- xpath queries
- xml fragments
- xml information retrieval
- document structure
- relational schema
- information retrieval