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	Maintaining Internal Consistency of Report for Real-time OLAP with Layer-based View
	Ziyu Lin ; Lin ZY(林子雨) ; Yongxuan Lai ; Lai YX(赖永炫) ; Chen Lin ; Lin C(林琛) ; Yi Xie ; Xie Y(谢怡) ; Quan Zou ; Zou Q(邹权)
	2011
关键词	OLAP report consistency
英文摘要	Maintaining internal consistency of report is an important aspect in the field of real-time data warehouses. OLAP and Query tools were initially designed to operate on top of unchanging, static historical data. In a real-time environment, however, the results they produce are usually negatively influenced by data changes concurrent to query execution, which may result in some internal report inconsistency. In this paper, we propose a new method, called layer-based view approach, to appropriately and effectively maintain report data consistency. The core idea is to prevent the data involved in an OLAP query from being changed through using lock mechanism, and avoid the confliction between read and write operations with the help of layer mechanism. Our approach can effectively deal with report consistency issue, while at the same time avoiding the query contention between read and write operations under real-time OLAP environment.
语种	英语
内容类型	其他
源URL	[http://dspace.xmu.edu.cn/handle/2288/71555]
专题	信息技术－会议论文 林子雨
推荐引用方式 GB/T 7714	Ziyu Lin,Lin ZY,Yongxuan Lai,et al. Maintaining Internal Consistency of Report for Real-time OLAP with Layer-based View. 2011-01-01.

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