文件与文件组备份——一次备份数据库的一部分。
File and file group backup — Backs up a portion of the database at a time.
最后，数据库和表空间的在线备份镜像将包括一组日志文件，在将备份镜像恢复到某个一致的时间点时，这些文件是必需的。
Finally, online backup images of databases and table Spaces will include the set of log files necessary to restore and recover the backup image to a consistent point in time.
差异化部分备份——差异化部分备份仅记录自上一次部分备份以来文件组中发生更改的数据区。
Differential partial backup — This backup only records data that has changed in the filegroups since the preceding partial backup.
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