差异备份

• A differential backup captures only the changes since the last full database backup
  差异备份只能捕获自上次完整数据库备份之后的更改。
• The following illustration shows the easiest backup strategy under the full recovery model
  在还原差异备份之前，必须先还原其差异基准。
• A differential base is a data backup is the reference point for the differential backup
  差异基准是一个数据备份，它是差异备份的参考点。
• At restore time , before you restore a differential backup , you must restore its base
  在还原过程中，还原差异备份之前，必须先还原其基准。
• A differential backup is based on the most recent , previous full backup
  差异备份基于之前最近一次的数据备份，此次备份称为差异备份的“基准
• Differential backup , restore , and recovery are not supported on file systems that are not ntfs
  非ntfs文件系统不支持差异备份、还原和恢复。
• The following example restores a full database backup followed by a differential backup from the
  以下示例还原完整数据库备份后还原差异备份。
• Base of the differential . a differential backup includes only the data that has changed since the
  差异备份仅包括自建立差异基准后更改的数据。