Introduction to Query Processing and Optimization

niti sethi

Abstract


All database systems must be able to respond to requests for information from the useri.e. process queries.Obtaining the desired information from a database system in a predictable and reliable fashion is the scientific art ofQuery Processing. Getting these results back in a timely manner deals with the technique of Query Optimization .Thispaper will introduce the reader to the basic concepts of query processing and query optimization in the relationaldatabase domain. How a database processes a query as well as some of the algorithms and rule sets utilized toproduce more efficient queries will be presented .Keywords- Query Optimization, Relational Database, Query Processing

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