Offline backup is the backup of all the physical database files after a normal database shutdown.

脱机备份是正常关闭数据库之后，对所有物理数据库文件执行的备份。

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Now that you are confirmed that the lost redo file is an INACTIVE redo log, shutdown the database - shutdown immediate.

既然您已经确认丢失的重做文件是inactive重做日志，那么现在可以关闭数据库——shutdown immediate。

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