However, the data in bottom databases is changing continuously. it is necessary to timely maintain for them in order to make the pre-aggregated data in distributed data warehouses synchronously reflecting the changes of data resources.
然而,底层数据库中的数据是不断变化的,为使分布式数据仓库中的预聚集数据能够同步反映数据源的变化,必须对其进行及时维护。
参考来源 - 分布式数据仓库中预聚集数据的一致性维护策略研究·2,447,543篇论文数据,部分数据来源于NoteExpress
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