期刊文献+

数据仓库多源实化视图一致性维护的方法研究

The Consistency of Multi-source Materialized View Maintenance in a Warehousing Environment
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摘要 研究了多源单视图下数据仓库实化视图联机维护与查询一致性问题,并对现有算法做了改进。改进后的算法在更改信息中增加时间戳控制数据源端查询的时序,并引入动作列表控制数据仓库端信息提交的顺序,采用补偿思想和应答机制来协调数据源与数据仓库间的数据更新,从而保证了实化视图维护和查询的一致性。 Research the On-line consistency of multi-source materialized view maintenance and query in a data warehouse,and improvement is given.The improvement algorithm add timestamp to update information to control the order of query in the data source,and import action list to control the information committiong order in the warehouse.Simultaneously,use compensation and response mechanism to coordinate the data update between data source and data warehouse.Thereby,the consistency of materialized view maintenance and query are guanteed.
出处 《微计算机应用》 2010年第8期19-22,共4页 Microcomputer Applications
关键词 多源实化视图 strobe M-IQA 时间戳 动作列表 Multi-source materialized view Strobe M-IQA Timpstamp Action list
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参考文献5

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