关系数据库的查询优化

Query Optimization in Relational Database Systems

查询优化是数据库管理系统设计和实现所采用的一项重要技术,它是影响数据库性能的关键因素。在对数据库查询优化所涉及的因素例如文件组织、存储介质、查询策略、查询算法、查询的操作方式、存储映射算法等讨论的基础上,全面地研究关系数据库的各种查询优化技术。

Query optimization is an important technique for the design and implementation of a database management system. It is a crucial factor that affects the performance of a database. Investigates the query optimization techniques of a relational database system, which is based on the discussion of the factors involved in query optimization such as file organization, storage medium, query strategy, query algorithm, the operation mode of query and stored mapping algorithm, etc.