Keyphrases
- query language
- data model
- database management systems
- database
- expressive power
- data types
- database systems
- relational algebra
- object oriented
- query evaluation
- data base management systems
- relational dbms
- query processing
- xml data
- complex objects
- recursive queries
- data sources
- data management
- database design
- databases
- query execution plan
- query engine
- relational model
- xml documents
- data acquisition
- regular expressions
- data processing
- response time
- ibm db
- data mining
- data collection
- transitive closure
- sparql queries
- neural network
- data sets