在此情况下，您需要将主要计算机上的数据库作为备用数据库启动，以便这两个数据库重新保持同步。
In this situation, you need to start the database on the primary machine as the standby to get the two databases back in sync again.
备用数据库上的数据可能根据客户端请求进行了修改。
The data on the standby database might be modified based on client requests.
为了使备用数据库尽可能最新，应该不断地将源数据库上可用的非活动日志文件应用到备用数据库上。
In order to keep the standby database as current as possible, new inactive log files from the source database should be continually applied on the standby database as they become available.
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