部分差异备份，基于部分备份。
这样，您可以通过为数不多的几个部分差异备份来补充部分备份。
This let you supplement a partial backup with a short series of differential partial backups.
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.
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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