摘要
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ISAM索引和哈希索引进行了描述,分析了各自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 the data retri eval. According to some related elements, this paper puts forward three differen t kinds of methods to set up data records of index, describes ISAM index and Has h index, analyzes their realizing principles of making data retrieval, and brief ly introduces the optimized methods to delete and insert data.
出处
《科技情报开发与经济》
2004年第1期210-211,共2页
Sci-Tech Information Development & Economy
关键词
索引技术
搜索码
数据检索
indexing technique
search code
data retrieval
