【摘要】 作为数据仓库的关键部件,支持数据抽取、清洗、转换和装载的工具集对任何数据仓库工程都是一个必不可少的成功因素。该文简单介绍了ETL技术,包括ETL的相关概念、ETL在数据仓库中的功能和重要地位以及现有的研究成果,然后重点介绍了ETL的具体设计和实现方法。更多还原

【Abstract】 As a key component of the data warehouse architecture,the set of tools that supports data extraction,cleansing,transformation and loading represents a critical success factor for any data warehouse project.This paper briefly introduces ETL technology,including the concepts related with ETL?ETL’s function and important location in data warehouse architecture and existed research products.Then it emphasizes the design and implementation method of ETL.更多还原