Keyphrases
- xpath expressions
- xml documents
- regular expressions
- xml data
- xpath queries
- xml schema
- xml queries
- xml databases
- boolean operations
- query processor
- xml query languages
- building blocks
- semi structured data
- sql queries
- data model
- relational databases
- query evaluation
- xml views
- materialized views
- decision support
- database management systems
- database
- query optimization
- relational database systems
- pattern matching
- functional dependencies
- matching algorithm