A Cost-Based Range Estimation for Mapping Top-k Selection Queries over Relational Databases.
Anteneh AyansoPaulo B. GóesKumar MehtaPublished in: J. Database Manag. (2009)
Keyphrases
- relational databases
- query processing
- database
- query result
- sql queries
- relational database systems
- result set
- execution plan
- efficient processing
- aggregation queries
- user queries
- query evaluation
- constraint databases
- query optimization
- query language
- skyline queries
- join operators
- cost model
- query plan
- relational database management systems
- xml data
- xml documents
- relational model
- storage cost
- complex queries
- database systems
- exact and approximate
- relational data
- aggregate queries
- view selection
- user defined
- web search engines
- data dependencies
- null values
- databases
- database queries
- estimation error
- data objects
- range queries
- database schema
- normal form
- index structure
- candidate set
- data management
- response time
- object oriented
- approximate answers
- data structure
- relational tables
- keywords
- keyword search in relational databases