Keyphrases
- logical foundations
- xml data
- xml documents
- xml format
- xml queries
- xml schema
- update operations
- xml query languages
- xml databases
- xml processing
- xml query processing
- active databases
- data model
- xml streams
- relational databases
- xml views
- relational data
- path expressions
- twig queries
- query language for xml
- query language
- semi structured data
- integrity constraints
- relational and xml data
- query processing
- native xml databases
- labeling scheme
- document structure
- xml query evaluation
- structured data
- databases
- xpath queries
- metadata
- web services
- object oriented
- distributed systems
- functional dependencies
- relational model