摘要
实化视图维护是数据仓库技术的重要问题。有效的维护方法能解决数据仓库与数据源的一致性问题。在确保一致性的前提下,减少维护视图的通信量,对实化视图的快速、准确的维护很重要。基于辅助视图的自维护方法,利用存储的辅助视图,可以有效地降低实化视图维护的通信负载,使得维护高效地进行。
Materialized view maintenance is a significant task in data warehouse environment. Effective maintenance method can solve the consistency problem between the data warehouse and datasources. On the premise of ensuring consistency, it＇s significant to minimize the necessary communication of view maintenance to achieve rapid and accurate response. Self-maintenance based on auxiliary views, which store extra information, can reduce the communication loads and make the maintenance process effectively.
出处
《微计算机信息》
2010年第18期145-146,共2页
Control & Automation
关键词
实化视图
辅助视图
自维护
Materialized view
Serf-maintenance
Auxiliary view
