Keyphrases
- query rewriting
- view definitions
- queries using views
- xpath queries
- conjunctive queries
- xml documents
- query evaluation
- relational data
- regular path queries
- query language
- xml queries
- xml data
- regular expressions
- single view
- multiple views
- rewrite rules
- transitive closure
- database
- data model and query language
- deductive databases
- expressive power
- view synthesis
- xml query languages
- rewriting rules
- first order logic
- data model
- databases