A Study On Query Optimization for Federated Database Systems.
Xinhua XuPublished in: Comput. Inf. Sci. (2009)
Keyphrases
- query optimization
- database systems
- query processing
- multidatabase systems
- cost model
- query execution
- databases
- query execution plan
- query scheduling
- cost estimation
- query optimizer
- xml data
- efficient query processing
- database technology
- data placement
- data types
- cardinality estimation
- transaction management
- continuous queries
- join queries
- query plan
- efficient execution
- approximate query answering