Optimization of Nested Queries in a Distributed Relational Database.
Guy M. LohmanDean DanielsLaura M. HaasRuth KistlerPatricia G. SelingerPublished in: VLDB (1984)
Keyphrases
- relational databases
- database
- semantic query
- databases
- query processing
- query language
- distributed systems
- relational database systems
- distributed environment
- optimization problems
- optimization algorithm
- response time
- relational operators
- database objects
- relational data
- user queries
- aggregate queries
- peer to peer
- search engine
- multi agent
- web search engines
- normal form
- efficient processing
- database queries
- information retrieval systems
- relational model
- distributed information retrieval
- object oriented
- query evaluation
- functional dependencies
- range queries
- sql statements
- relational queries
- relational tables
- web search
- communication cost
- inverted index
- xml databases
- sql queries
- relational algebra
- keyword search
- complex objects
- xml documents
- expressive power
- mobile agents