Query Optimization by Using Derivability in a Data Warehouse Environment.
Jens AlbrechtWolfgang HümmerWolfgang LehnerLutz SchlesingerPublished in: DOLAP (2000)
Keyphrases
- data warehouse
- query optimization
- query execution
- approximate query answering
- data warehousing
- database systems
- query processing
- cost model
- data integration
- olap queries
- data management
- business intelligence
- data mining
- query optimizer
- decision support
- xml data
- databases
- data sources
- queries involving
- selectivity estimation
- data cube
- query rewriting
- star schema
- materialized views
- continuous queries
- on line analytical processing
- metadata
- data partitioning
- data analysis
- database
- heterogeneous sources
- join queries
- recursive queries
- query plan
- data model