数据检索中索引技术的探讨

Study on the indexing techniques in data retrieval

设计索引的目的是为了加快数据检索．文章就与索引相关的一些特征元素，提出了创建索引中数据目录项的3种不同方法，同时对 B^+索引进行了描述，分析了其在进行数据搜索的实现原理，简要介绍了在实现数据删除和插入时的优化思路．

The index is designed for the purpose of accelerating data retrieval.According to some re-lated elements,this paper puts forward three different kinds of methods to set up data records of in-dex,describes B^+ index,analyzes its realizing principle of making data retrieval,and briefly intro-duces the optimized methods to delete and insert data.