UnQL: A Query Language and Algebra for Semistructured Data Based on Structural Recursion.
Peter BunemanMary F. FernandezDan SuciuPublished in: VLDB J. (2000)
Keyphrases
- query language
- semistructured data
- data model
- complex objects
- relational algebra
- transitive closure
- expressive power
- regular expressions
- query evaluation
- semistructured databases
- structural information
- database
- object oriented
- recursive queries
- conjunctive queries
- semi structured
- regular path queries
- conceptual model
- deductive databases
- structured data
- xml data
- databases
- path expressions
- information retrieval