Global Query Optimization Based on Multistate Cost Models for a Dynamic Multidatabase System.
Qiang ZhuJaidev HaridasWen-Chi HouPublished in: ICEIS (1) (2003)
Keyphrases
- query optimization
- multidatabase systems
- cost estimation
- database systems
- cost model
- query processing
- multidatabase environment
- query execution
- transaction management
- query plan
- xml data
- semantic query optimization
- join operators
- cardinality estimation
- query execution plans
- execution plan
- approximate query answering
- query scheduling
- query optimizers
- efficient execution
- recursive queries
- data placement
- query optimizer
- concurrency control
- relational databases