前滚

Web Definition

1.
roll forward
　　所谓前滚（roll forward），是指应用数据库或日志备份中的全部已完成的事务，以将数据库恢复到某个时间点，相当于重新执行一遍“事务 …
doc.chinaunix.net|Based on 837 pages
2.
rolling forward
前滚（rolling forward ）：在恢复操作中恢复重做日志信息的过程4、存档日志文件：重做日志文件可以被自动归档。
zhidao.baidu.com|Based on 25 pages
3.
redo
重新启动时候，首先做前滚(redo)，再作会滚(undo)注册会员 从回滚段头的事务表中找到未提交的事务来回滚。
www.itpub.net|Based on 24 pages
4.
preroll
PREMIERE 所有中英翻译 - 豆丁网 ... pre-process 预处理 preroll 前滚 preset 预先设定 ...
www.docin.com|Based on 5 pages
5.
front roll
＜排球实用英语＞三 英汉排球术语... ... front-line player 前排队员 front roll 前滚 front row player 前排队员 ...
bbs.bl35.org|Based on 2 pages
6.
roll back
归档日志模式不是默认的日志工作模式，但此模式是允许用户执行前滚 （roll back）恢复的惟一方法。在数据库的日志模式为循环日志的 …
www.tydf.cn|Based on 2 pages
7.
Forward Spin
...道: 别只看飞行距离, 选低申弹道的杆身设计及略带前滚(Forward Spin) 的球头设计多跑个20-30码也是很重要的, 特别是冬天球道草还...
www.golfly.com.tw|Based on 1 page

Sample Sentence

Definition:
AllAll,roll forwardroll forward,rolling forwardrolling forward,redoredo
Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard
1.
For a rollforward recovery, it is not necessary to know where the actual logs sit as the rollforward command figures that out for you.
对于前滚恢复，不需要知道实际日志的位置，因为前滚命令会自动找到它们。
duì yú qián gǔn huī fù , bù xū yào zhī dào shí jì rì zhì de wèi zhì , yīn wèi qián gǔn mìng lìng huì zì dòng zhǎo dào tā men 。
www.ibm.com
2.
If the roll forward set has not been rolled forward far enough to be consistent with the database, the undo phase cannot occur.
如果前滚集前滚得不够远，无法与数据库一致，则不会出现撤消阶段。
rú guǒ qián gǔn jí qián gǔn de bú gòu yuǎn , wú fǎ yǔ shù jù kù yí zhì , zé bú huì chū xiàn chè xiāo jiē duàn 。
www.kuenglish.info
3.
Note that this option is only possible with offline backups and no rollforward is possible.
注意，该选项仅适用于离线备份，不支持前滚。
zhù yì , gāi xuǎn xiàng jǐn shì yòng yú lí xiàn bèi fèn , bù zhī chí qián gǔn 。
www.ibm.com
4.
For data and differential backups ( and for log backups containing bulk-logged operations ) , roll forward must go at least up to this LSN.
对于数据备份和差异备份（以及包含大容量日志操作的日志备份），必须至少前滚到此LSN。
duì yú shù jù bèi fèn hé chā yì bèi fèn ( yǐ jí bāo hán dà róng liàng rì zhì cāo zuò de rì zhì bèi fèn ) , bì xū zhì shǎo qián gǔn dào cǐ LSN 。
www.ecd123.com
5.
In other words, you cannot roll forward to a specific point in time or to the end of logs from the last full database backup.
换句话说，无法前滚到上次全数据库备份以来的任意时间点或日志的末尾。
huàn jù huà shuō , wú fǎ qián gǔn dào shàng cì quán shù jù kù bèi fèn yǐ lái de rèn yì shí jiān diǎn huò rì zhì de mò wěi 。
www.ibm.com
6.
With online backup, there is a means to roll forward the logs to any specific point in time or to the end of the logs.
利用在线备份，就可以将日志前滚到任何特定的时间点或日志的末尾。
lì yòng zài xiàn bèi fèn , jiù kě yǐ jiāng rì zhì qián gǔn dào rèn hé tè dìng de shí jiān diǎn huò rì zhì de mò wěi 。
www.ibm.com
7.
The rollforward to a specific point in time or to the end of logs can only be possible if there aren't "gaps" between these logs.
只有在这些日志之间没有“中断”的情况下，才可能前滚到任何特定的时间点或日志的末尾。
zhǐ yǒu zài zhè xiē rì zhì zhī jiān méi yǒu " zhōng duàn " de qíng kuàng xià , cái kě néng qián gǔn dào rèn hé tè dìng de shí jiān diǎn huò rì zhì de mò wěi 。
www.ibm.com
8.
In the redo phase, data is always rolled forward to a point that is redo consistent with the state of the database at the recovery point.
在重做阶段，始终将数据前滚到与数据库在恢复点的状态一致的点。
zài chóng zuò jiē duàn , shǐ zhōng jiāng shù jù qián gǔn dào yǔ shù jù kù zài huī fù diǎn de zhuàng tài yí zhì de diǎn 。
msdn2.microsoft.com
9.
Manually determining the correct point in time to which to roll forward a database is difficult, particularly for a partitioned database.
手动地确定前滚一个数据库的正确时间点比较困难，对于分区数据库更是如此。
shǒu dòng de què dìng qián gǔn yī gè shù jù kù de zhèng què shí jiān diǎn bǐ jiào kùn nan , duì yú fēn qū shù jù kù gèng shì rú cǐ 。
www.ibm.com
10.
Copying the portion of the transaction log needed to roll forward the database to a state consistent with the same backup devices .
复制事务日志中用于将数据库前滚到与相同的备份设备状态一致的那部分。
fù zhì shì wù rì zhì zhōng yòng yú jiāng shù jù kù qián gǔn dào yǔ xiāng tóng de bèi fèn shè bèi zhuàng tài yí zhì de nà bù fen 。
www.ecd123.com
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