Query Processing for Integration of Heterogeneous Information Sources Using Outer Joins.
Koichi MunakataPublished in: CODAS (1996)
Keyphrases
- heterogeneous information sources
- query processing
- uniform access
- join algorithms
- query optimization
- query evaluation
- information sources
- join processing
- join queries
- cost model
- database systems
- heterogeneous databases
- r tree
- data integration
- graphical interface
- index structure
- information integration
- data sources
- data management
- query optimizer
- join operator
- query execution
- xml data
- automated reasoning
- data sets
- query plan
- sql queries
- user friendly
- spatial databases