彼得拔腿就跑，头也不抬地冲下山坡，翻着跟斗向前滚。
Peter shot off and rushed head over heels down the mountain-side, turning wild somersaults on his perilous way.
不进行前滚会使数据库处于未决模式。
在分割镜像上，编目将变得不一致（直到完成前滚）。
On a split mirror, the catalogs will be inconsistent (until rollforward is completed).
防止出现超越某一时间点前滚的归档重做日志的丢失。
Lost of archived redo logs preventing a roll forward beyond that point.
前滚数据库或表空间。
此进程在回滚、重启恢复和前滚期间读取日志文件。
This process reads log files during rollback, restart recovery and roll forward.
在CLP中，可以发出以下命令来执行恢复，并前滚表空间。
In the CLP, you will issue the following to do a restore and roll forward a table space.
特定的本地时间(新特性)——它会前滚到特定的本地时间戳。
To a specific local time (new feature) - to roll forward to a specific local timestamp.
您需要使用此命令前滚数据库（请参阅清单17）。
You need to roll forward your database by using this command (also in Listing 17).
因此，用源数据库中的任何日志进行前滚都是行不通的。
Therefore, rollforward through any of the logs from the source database is not possible.
要恢复增量备份，只需要两步，恢复增量数据库并前滚。
To recover from the incremental backup, there are only two steps to follow, Restore the incremental database and roll forward to completion.
要在DB 2UD b中执行前滚恢复，必须使用归档日志记录。
To do a roll forward recovery in DB2 UDB, archive logging must be used.
在前滚过程中可以更改此配置参数以允许您访问多个位置中的日志。
You can change this configuration parameter during the roll-forward process to allow you to access logs in multiple locations.
在CLP中，您将发出下面的命令来执行恢复，并前滚整个数据库。
In the CLP, you will issue the following commands to do a restore and roll forward a full database.
Recovery—表示保留日志，且可以用于前滚恢复。
Recovery - to indicate that the logs are retained, and can be used for forward recovery.
但是注意，可以选择前滚到给定的本地时间(新特性)或GMT时间。
Note, however, that you have the option to roll forward to a given local time (new feature) or GMT time.
在使用表空间之前，必须前滚该表空间(或是整个数据库)。
The table space (or the entire database) must be rolled forward before the table space can be used.
表空间或数据库的恢复可以通过恢复备份映像和前滚来完成。
The restore for table Spaces or database can be done by restoring a backup image and rolling forward.
他还可以将数据库前滚到应用程序破坏数据之前的一个时间点。
He is also able to roll the database forward to a point in time just before the application did its damage.
注意，您可以手动恢复完全备份，应用星期六的增量备份映像并进行前滚。
Note that you can restore either a full backup manually, apply the Saturday incremental backup image and roll forward.
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。
Manually determining the correct point in time to which to roll forward a database is difficult, particularly for a partitioned database.
在这一时间点上，前滚将继续，直到用户决定通过键入cancel来停止前滚。
At this point in time roll forward will go on until users decided to halt by keying cancel.
当我执行5.fromToday 时，我需要将日历向前滚动 5天。
When I execute 5.fromToday, I'm rolling the calendar ahead five days.
完全恢复是包括将数据库恢复到最近时间的前滚日志并且没有数据丢失的恢复。
A complete recovery is a recovery that involves rolling forward the logs to bring the database to the most current time with no lost of data.
如果取消选择这两个参数，就不能对数据库进行前滚恢复，因为将不再保留日志。
If both of these parameters are de-selected, roll-forward recovery becomes unavailable for the database because logs will no longer be retained.
这时，您仍将处于前滚挂起模式(SQL 1117n)，因为有要前滚的事务。
At this moment, you will still be in roll forward pending mode (SQL1117N) since there will be transactions to be roll forward.
还有些地方，大团的熔岩——像烤焦的面包——在流入海中爆发之前滚过低矮的树丛。
In other places, vast gouts of lava - the texture of burned bread - had rolled through the scrub before exploding on the shore.
还有些地方，大团的熔岩——像烤焦的面包——在流入海中爆发之前滚过低矮的树丛。
In other places, vast gouts of lava - the texture of burned bread - had rolled through the scrub before exploding on the shore.
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