But with distributed databases, each source may use a separate mechanism.
但是对于分布式数据库，每个源可能使用单独的机制。
To improve data availability and system performance, data replication methods are widely adopted in distributed databases and data warehouses.
在分布式数据库和数据仓库中，普遍采用数据复制的方法来提高数据的可用性和系统的性能。
To improve data availability and system performance, data replication methods are widely adopted in distributed databases and data warehouses.
数据复制是分布式数据库和数据仓库中常用的方法，以提高数据的可用性和系统的性能。
With the growing concern over data privacy-preserving problem, how to discover association rules from distributed databases becomes one of the hot topics of this field.
数据隐私问题引起人们的广泛关注，如何在分布式数据库的环境下挖掘关联规则成为研究的热点。
With the growing concern over data privacy-preserving problem, how to discover association rules from distributed databases becomes one of the hot topics of this field.
数据隐私问题引起人们的广泛关注，如何在分布式数据库的环境下挖掘关联规则成为研究的热点。
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