浅谈Oracle数据库基于索引的SQL语句优化方法

Sample Analyzing the Optimization of SQL about Oracle Database Based on Indexes

Oracle一直是计算机技术领先的一个源泉。正如书籍索引有助于读者更快地找到所需的信息一样,利用Oracle数据库索引这种有效加快访问数据的方法也有助于更快检索到所需数据。合理构造表索引将有效提高数据库查询速度。SQL语句和所有其他程序设计语言一样,是大家想熟练使用Oracle产品所必须掌握的语言工具。该文系统分析了Oracle数据库索引的特点,对使用SQL语句基于索引对数据库的效率进行优化的实现方法提出了几点认识,并以自己的实际工作经验为例进行了一些新的探索和尝试。

Oracle is always a source of advantage about computer technology.Sharing the same principle with a book index,Oracle Database Index,an access to faster data visiting,avails to obtain the data in demand.A reasonable structure of table index could accelerate data search speed.SQL is a primary language tool as any other program design language for better usage of Oracle.This paper proposes some viewpoints on the realization methods to the optimization of database efficiency based on index through using SQL language in accordance with my practical experiences,analyzing the characteristics of Oracle database index.