关于数据仓库中编码位图索引的研究

Study on encoded bitmap indexing used for data warehouse

引入一种新的索引技术—编码位图索引,介绍它的基本思想及其维护方法,并列举了它在数据仓库中的几种典型应用。其中编码位图索引,能较好地提高数据仓库的查询效率。

It was presented a new indexing technique, encoded bitmap indexing, introduced the essential idea and themaintenance of the encoded bitmap indexing , and enumerated its typical applications in data warehouse(DW) environment.The encoded bitmap indexing can enbance the efficiency of retrieving for data warehouse.