The fourth chapter simply introduces hard disk knowledge and general method of data recovering.
第四章简单介绍了硬盘存储器的知识,并对数据恢复的一般方法进行阐述。
Recovering from a situation where there is no data file backup.
从没有数据文件备份的情形中恢复。
Recovering from the loss of a data file that belongs to the system tablespace.
从属于系统表空间的数据文件的丢失中恢复。
These backups are necessary for recovering data when you use the full database backup model.
使用完全数据库备份模型时,恢复数据需要这些备份。
These backups are necessary for recovering data when you use the full database backup model.
使用完全数据库备份模型时,恢复数据需要这些备份。
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