SQL Server和Oracle中分布式数据的一致性

Consistency of Data Distributing in SQL Server and Oracle

为确保SQLServer和Oracle中分布式数据的一致性,须建立不同数据库间的链接,包括SQLServer中分布数据库间及Oracle中分布式数据库间的链接。采用复制技术,并通过分发服务器实现多副本分布式数据更新。其SQLServer中数据更新含快照、事务、合并复制;Oracle中数据更新则由基本及高级复制构成。

The linkages between different databases were established to certain the consistency of distributed data in SQL Server and Oracle. The linkages include the linkages among the different distributed databases in SQL Server and Oracle. The renewal of multi-copy data was achieved by adopting copy technology and distributed servant. The data renewal in SQL Server contains snapshot copy, affair copy and combination copy; Oracle＇s data update system was composed of basic copy and advanced copy..