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.
在系统管理期间，最常见的一个需求是有效地使用zip文件来管理备份，或者将一组文件从一台计算机转移到另一台计算机。
One of the most common requirement during systems administration is to efficiently work with zip files for managing backups or to move a set of files from one machine to the other.
原始文件，原始数据组，祖父：一个已衍生出两个连续文件的数据储存文件，用于和新文件作比较或作为更新文件的备份。
Computer Science A stored file of data from which two successive files have been derived, used for comparison with or as a backup copy for the newer files.
原始文件，原始数据组，祖父：一个已衍生出两个连续文件的数据储存文件，用于和新文件作比较或作为更新文件的备份。
Computer Science A stored file of data from which two successive files have been derived, used for comparison with or as a backup copy for the newer files.
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