Keyphrases
- query optimization
- multidatabase systems
- database systems
- query processing
- cost model
- query execution
- transaction management
- cost estimation
- query scheduling
- cardinality estimation
- xml data
- semantic query optimization
- efficient query processing
- query execution plans
- query execution plan
- data placement
- query optimizer
- join queries
- selectivity estimation
- efficient execution
- recursive queries
- database applications
- data management
- response time
- data model
- database