Keyphrases
- xml documents
- xml data
- xml format
- xml schema
- xml queries
- update operations
- xml processing
- xml databases
- structured data
- path expressions
- keyword search
- xml query languages
- xml views
- xml query processing
- query processing
- query optimization
- relational databases
- databases
- query language for xml
- xml fragments
- xml dbms
- relational and xml data
- markup language
- query evaluation
- query language
- semi structured data
- relational schema
- twig queries
- metadata
- object oriented
- native xml databases
- xml streams
- neural network
- website
- data model
- extensible markup language
- integrity constraints
- semi structured
- document structure