A query language for selecting, harmonizing, and aggregating heterogeneous XML data.
Turkka NäppiläKatja MoilanenTimo NiemiPublished in: Int. J. Web Inf. Syst. (2011)
Keyphrases
- xml data
- query language
- data model
- query evaluation
- xml queries
- expressive power
- query optimization
- xml databases
- relational data
- path expressions
- database
- object oriented
- keyword search
- querying xml data
- relational algebra
- xml schema
- semi structured data
- semistructured data
- relational and xml data
- query decomposition
- conceptual model
- native xml
- relational databases
- queries on xml data
- semi structured information
- efficient query evaluation
- xpath queries
- relational database systems
- query processing
- xml documents
- database systems
- transitive closure
- heterogeneous data
- labeling scheme
- recursive queries
- twig queries
- regular expressions
- conjunctive queries
- data integration
- standard for data exchange
- search engine