Evaluation of queries based on the extended relational calculi.
Isamu KobayashiPublished in: Int. J. Parallel Program. (1981)
Keyphrases
- query language
- query processing
- relational calculus
- data model
- relational queries
- relational algebra
- response time
- database queries
- evaluation metrics
- evaluation method
- efficient processing
- relational databases
- web search engines
- data sources
- aggregate queries
- database query languages
- relational operators
- search queries
- relational model
- relational data
- range queries
- query terms
- user queries