Query Optimization in the IBM DB2 Family.
Peter GassnerGuy M. LohmanK. Bernhard SchieferYun WangPublished in: IEEE Data Eng. Bull. (1993)
Keyphrases
- query optimization
- query execution plan
- ibm db
- database systems
- cost model
- query processing
- multidatabase systems
- cost estimation
- query execution
- semantic query optimization
- database
- special case
- cardinality estimation
- efficient execution
- data placement
- query scheduling
- query execution plans
- xml data
- query optimizers
- join queries
- execution plan
- approximate query answering
- query plan