Top-k selection queries over relational databases: Mapping strategies and performance evaluation.
Nicolas BrunoSurajit ChaudhuriLuis GravanoPublished in: ACM Trans. Database Syst. (2002)
Keyphrases
- relational databases
- query processing
- database
- query evaluation
- result set
- query result
- relational database systems
- user defined
- xml data
- sql queries
- relational database management systems
- keyword search in relational databases
- selection strategies
- query language
- efficient processing
- null values
- keyword queries
- retrieval strategies
- user queries
- object oriented
- data sources
- keyword search
- relational model
- aggregate queries
- aggregation queries
- database queries
- response time
- constraint databases
- approximate answers
- databases
- skyline queries
- normal form
- retrieval systems
- query optimization
- selection strategy
- online auctions
- search queries
- data objects
- data dependencies
- exact and approximate
- functional dependencies
- range queries
- relational tables
- xml documents