Query Optimization Strategy in Distributed Database System
Shuai Wang · 2008
The paper briefly introduces the concept and characteristics of distributed database system.When adding distributed data into database system,the distributed query processing is very difficult and complicated,and the cost of query processing is different due to different query processing strategies.Query optimization in distributed system is more important and has more notable effect。The paper discusses its purpose and strategy,and presents how different operation execution orders will affect the query performance.