【摘要】 随着时间的推移,数据仓库中会产生大量休眠数据,严重影响其性能。本文从休眠数据的产生、识别和处理三个方面进行研究,取得较好效果并维持数据仓库的性能不会下降。更多还原

【Abstract】 Along with time passes away,a great deal dormant data have been produced and affect the performance of data warehouse.Through researching on the origin of dormant data,the identification of them,and how to do with them these three problems in this paper,we get a good effect on the performance of data warehouse.更多还原