Depending on the application, changing the architecture could include daunting tasks such as synchronizing session state and replicating database transactions across server locations.

取决于该的应用程序体系结构的更改可能包括令人生畏任务如同步会话状态和跨服务器位置复制数据库事务。

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Replication is highly configurable but is based on replicating changes to database tables from one location to another.

复制是高度可配置的，但必须是将数据库表的更改从一个位置复制到另一个位置。

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HADR protects against data loss by replicating data changes from a source database, called the primary, to a target database, called the standby.

HADR把数据修改从源数据库(称为主数据库)复制到目标数据库(称为备用数据库)，从而防止数据丢失。

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Companies like FluidOps make replicating all levels of a virtual landscape--the data, database, application, and operating system--a one-click operation.

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