根据在物理备份时数据库的状态,可以将备份分为一致性备份(consistent backup)和不一致性备份(inconsistent backup)两种: 一致性备份:一致性备份是当数据库的所有可读写的数据库文件和控制文件具有相同的系统改变号(SCN),并且数据文件不...
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非一致性备份(Inconsistent Backup):open时或 shutdown abort时备份。需要重做日志来进行恢复 。
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inconsistent backup
不一致的备份
以上为机器翻译结果,长、整句建议使用 人工翻译 。
Backup corruption happens when you copy a file as it is being written so that you have a backup that is in an inconsistent state.
如果文件正在被写入时您复制该文件,会发生备份损坏,从而您具有处于不一致状态的备份。
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It can also be connected to an external 5-volt Lithium-ion polymer battery for backup power, enabling use in areas where electricity can be inconsistent.
ENGADGET: Marvell and Stanford create SMILE Plug cloud computer, SMILE Consortium to get companies and devs to build a better education system
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