Keyphrases
- query optimization
- data abstraction
- database management
- database systems
- conceptual modeling
- cost model
- query processing
- formal specification
- object oriented
- object oriented databases
- cardinality estimation
- programming language
- abstract data types
- xml data
- query execution
- multidatabase systems
- query optimizer
- selectivity estimation
- case study
- query plan
- data mining
- software development
- multi dimensional
- relational database systems
- data model
- data analysis