Monotonically improving approximate answers to relational algebra queries.
Kenneth P. SmithJ. W. S. LiuPublished in: COMPSAC (1989)
Keyphrases
- relational algebra
- query answers
- approximate answers
- query language
- aggregate queries
- relational calculus
- probabilistic databases
- expressive power
- relational model
- data model
- database query languages
- relational database systems
- normal form
- complex objects
- relational data model
- exact answers
- query evaluation
- first order logic
- recursive queries
- aggregate functions
- complex queries
- query answering
- relational databases
- multi dimensional
- summary tables
- query processing
- functional dependencies
- cost model
- database management systems
- efficient computation
- data analysis
- data structure
- database