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数据仓库清洗技术讨论 被引量:8

The Discussion about Data Cleansing of Data Warehouse
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摘要 数据仓库建设过程中最关键的环节是数据集成,本文重点分析了数据清洗需要解决的问题及涉及的主要技术,针对数据库的数据模型与数据仓库模型的区别讨论了利用元数据的映射规则的数据清洗方法. It is keys to build the data warehouse, this paper describes and analysis the primary question and technology to resolve the data Cleansing , and discusses the method of data Cleansing using the mapping regular of metadata based on the differentiate betwean database's data module and data warehouse's data module.
作者 田芳 刘震
出处 《青海师范大学学报(自然科学版)》 2005年第4期50-53,共4页 Journal of Qinghai Normal University(Natural Science Edition)
基金 国家教育部"春晖"项目
关键词 数据仓库 数据清洗 数据模型 data warehouse data cleansing data module
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参考文献6

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二级参考文献24

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