rollback是什么意思   rollback怎么读

英式:[ˈrəʊlbæk]    美式:[ˈrəʊlbæk]

rollback单词基本解析:

n.反转,压价
n.[电脑]回滚, 击退, 回降
n.反转,压价;

rollback变化用词:

复数:rollbacks;

复数:rollbacks

rollback英英释义:

Noun

1. the act of forcing the enemy to withdraw

2. reducing prices back to some earlier level

名词 rollback:

the act of forcing the enemy to withdraw

同义词:push back

reducing prices back to some earlier level

rollback[ 'rəulbæk ]n.the act of forcing the enemy to withdraw

同义词:push back

reducing prices back to some earlier level

rollback中文词源:

rollback用法和例句:

The linear rollback method is perhaps the simplest one based directly on air monitoring data.

线性压值法也许是直接根据监测资料所得到的最简单的方法.

辞典例句

A rollback segment is only online until the instance is shut down.

直到实例关闭后,回滚段才联机.不明白什么意思.

互联网

The cancellation of the transaction is called a rollback.

取消事务称为回滚.

互联网

This paper introduce the rollback checkpointing algorithm in the retry - recovery technique.

本文介绍了容错重算恢复技术中的向后滚动检查点算法.

互联网

The rollback or failure of transaction would affect other concurrent transactions.

事务的回滚操作或失败将会影响到其他并发事务.

互联网

An exception occurred during the Rollback phase of the { 0 } installer.

在{0}安装程序的“回滚”阶段发生异常.

互联网

Mark current transaction for rollback.

将当前事务标记为回滚.

互联网

The rollback of a directory services database transaction failed. The following information was reported: { 0 }.

回滚目录服务数据库操作失败.报告了以下信息: {0}.

互联网

Neither database users nor administrators can access or read rollback segments or read them.

数据库用户和管理员都不能访问和读回滚段.

互联网

I don't think a rollback is warranted, and I would like to explain to you why.

我并不认为回档是有根据的, 请听我解释原因.

互联网

Process terminated by user. It is recommended to rollback the changes made to the system.

进程被用户终止. 推荐恢复对系统做过的更改.

互联网

The server process records the before - image to the rollback block and updates the data block.

服务进程记录了数据块本来的映像到回滚段的块中,然后更新数据块.

互联网

Receive port already exists, please click Yes to reuse it and No for to rollback.

接收端口已存在.请单击“是”重新使用它或单击“否”回滚.

互联网

Enter a ROLLBACK statement and re - execute all statements since the last commit or 2.

回滚至最近一次提交,重新执行所有语句.

互联网

To be fair, I should admit that the rollback command is not always destructive.

为了公平, 我允许回滚命令不是破坏性的.

互联网

rollback


1. RBS2_1 &RBS2_2 are system rollback segments for ops2, this is defined in the init.ora parameter file.

2出现的概率太小太小,除非是所有回滚段都被大事务占用且都扩展,新的小事务出现,而大事务都提交了但小事务一直没有完成。


CbUncommittedFree This value indicates the number of uncommitted bytes available (bytes that are free but available for reclaim by rollback) on the page.

cbUncommittedFree此值指示页上可用的未提交字节数(空闲但可通过回滚回收的字节)。


Ibase_rollback_ret() - Rollback transaction and retain the transaction context

ibase_rollback_ret()-回卷一笔事务并保留事务上下文


The draft ISO SQL3 standard states that on a rollback, all cursors (even those cursors opened WITH HOLD) should close.

ISO SQL3标准草案声明:在回退时,所有游标(甚至是那些打开为WITH HOLD的游标)都应关闭。


Using objects known as rollback segments, Oracle constructs read-consistent views of data as of the point in time a SQL statement is issued.

Oracle使用名为“回滚段”的对象在发出SQL语句的时间点处构造读取一致数据视图。


Oracle uses archived logs to roll forward to consistent state and Undo table space to rollback any uncommitted data.

Oracle使用归档日志来前滚到一致状态,并撤销表空间来回滚任何未提交数据。


Rollback segment management in Oracle database

Oracle数据库中的回退段管理


MANAGING ROLLBACK SEGMENT ON ORACLE DBMS

ORACLE的回退段管理研究


No locks are released by the RELEASE SAVEPOINT or ROLLBACK TO SAVEPOINT commands: locks are released only at the end of a transaction.

RELEASE SAVEPOINT或ROLLBACK TO SAVEPOINT命令不会释放任何锁:只有在事务结束后才会释放锁。


The ROLLBACK TRANSACTION request has no corresponding BEGIN TRANSACTION

ROLLBACK TRANSACTION请求没有相应的BEGIN TRANSACTION


The effect of a ROLLBACK on cursors is defined by these three rules

ROLLBACK对游标的影响由下面三个规则定义


A ROLLBACK statement backs out all modifications made in the transaction by returning the data to the state it was in at the start of the transaction.

ROLLBACK语句通过将数据返回到它在事务开始时所处的状态,来取消事务中的所有修改。


USN rollback may affect the replication of any object or attribute in any partition.

USN回滚可能会影响任何分区中任何对象或属性的复制。


A Robust and Efficient Rollback Recovery Implementation Scheme

一种可靠高效的回卷恢复实现方法


A Checkpoint-based Rollback Recovery and Process Migration System

一种基于检查点的卷回恢复与进程迁移系统


33. A storage space within a tablespace that holds transaction information used to guarantee data integrity during a rollback and used to provide read consistency across multiple transactions.

一种表空间内的储存空间,用来保存事务[交易]信息,以确保返回重算期间内数据的完整性,并用来保持在多项事务[交易]之间读取数据的一致性。


One solution would be to have a small application that joins the open transaction branch within the engine that advises the engine to commit or rollback the open transaction.

一种解决方案是用一个小型应用程序连接引擎中打开的事务分支,并通知引擎提交或回滚这一打开的事务。


The following table explains the effects of Rollback on transactions.

下表解释了Rollback对事务的影响。


However, we can also rollback the current transaction, resetting the state of our database to the last commit point.

不过,我们也可以回滚当前事务,从而把数据库恢复到事务保存前的状态。


To be fair, I should admit that the rollback command is not always destructive.

为了公平,我允许回滚命令不是破坏性的。


This will include counts of blocks read from the rollback segment in order to roll back a block.

为了回滚一个块,这将包括从回滚段读取的块的数目。


Why does the commit or rollback of a transaction close the result set?

为何事务的提交或回滚关闭结果集?


Stripping others for personal gain does not serve ascension, as the one stripped is then likely to experience a cease-ascension or a rollback over time.

为自身利益而剥夺他人,是并不服务于提升的,因为剥夺者将很可能随时间而经历提升的中止或退步。


Upon transaction commit or rollback, the agent becomes idle and ready to service the requests assigned by the dispatcher.

事务一提交或回滚,代理就变为空闲的,并可以服务于分配器分配的请求。


Transactions and the rollback log

事务和回退日志


rollback transaction

事务回退


The rollback or failure of one transaction would affect other concurrent transactions.

事务的回滚操作或失败将会影响到其他并发事务。


Transaction management ensure long transaction not be aborted by modifying the data’s timestamp, at the same time, partial rollback, redo in order to realize the response of the updated data.

事务管理器通过修改长事务时间戳来保证该事务能够不被撤消,同时进行部分回滚,然后重做的方法来实现对更新的数据响应。


transaction rollback

事务重算


None of the statements executed before the rollback is, in fact, rolled back at the time this error occurs.

事实上,回滚之前执行的任何语句都不会在错误发生时回滚。


Only exceptions that are thrown and are not handled within the script result in a rollback.

仅当脚本中产生异常并且未在脚本中得到处理时,才会导致回滚。


It was described its system architecture design,function structure and business flow,discussed routing in cable layout,rollback segment and hot-standby.

介绍系统体系结构,系统功能结构及业务流程,详细讨论分析配线路由选择、数据库回滚段性能优化、双机热备份等关键技术。


Recovering from the loss of a data file that belongs to a traditional rollback segment tablespace.

从属于传统回滚段表空间的数据文件的丢失中恢复。


DDL triggers that are run from a batch and explicitly include the ROLLBACK TRANSACTION statement will cancel the whole batch.

从批处理中运行并显式包含ROLLBACK TRANSACTION语句的DDL触发器将取消整个批处理。


He cautioned the government against a rollback and said it should be "gradual and calibrated.

他告诫政府警惕经济回弱,说它应该“渐进和校准。”


The following steps show the sequence of events that may cause a USN rollback.

以下步骤显示了可能导致USN回滚的事件的顺序。


The following example generates a status of the rollback process for the specific session ID.

以下示例为特定的会话ID生成回滚进程的状态。


Night falls on Launch Pad 39A at NASA's KennedySpace Center in Florida following rollback of the pad's rotatingservice structure, or RSS, revealing space shuttle Atlantis in all itsglory.

佛罗里达州肯尼迪航天中心,夜幕下的39A发射台,旋转服务支架RSS上的灯光照在航天飞机上,使亚特兰蒂斯号显得格外壮美。


You can use UNDO_RETENTION to satisfy queries that require old undo information to rollback changes to produce older images of data blocks.

你可以用undo_retention来满足这样一个疑问----用旧的撤销信息来回滚改变,以制造数据块的旧镜像。


You see a lot of these comments because admins have a special "rollback" link that automatically uses that kind of a message when reverting.

你可以看的很多这样的注解,因为管理员有一个特殊的“回转”连接,该连接可以在恢复时自动的产生这样的信息。


Using DML Triggers That Include COMMIT or ROLLBACK TRANSACTION

使用包含COMMIT或ROLLBACK TRANSACTION的DML触发器


This might be used, for example, to allow COMMIT statements to be performed at regular intervals to limit the size of the rollback log and lock table.

例如,这可以用来允许COMMIT语句定期执行,以限制回退日志和锁定表的大小。


Conservatives hoped for a rollback of left-wing support for the controversial new legislation.

保守派希望左派能撤回他们对有争议的新立法的支持


Conservatives hoped for a rollback of left - wing support for the controversial new legislation.

保守派希望左派能撤回他们对有争议的新立法的支持。


Whole rollback

全程回退


Keywords Software Fault-tolerance;Cluster System;Rollback Recovery;Failover;Checkpoint;

关键词软件容错;集群系统;回卷恢复;故障转移;检查点;


Keywords: fault-tolerance, finite state machine (FSM), checkpointing, rollback, critical path

关键词:容错,有限状态机,检查点,卷回作


rollback of protectionism

减缩保护主义措施


When errors occur, corrective action (COMMIT or ROLLBACK) should be included in application code.

出现错误时,纠正操作(COMMIT或ROLLBACK)应包括在应用程序代码中。


The Research and Practice of Rollback Recovery of Faults in Distributed Systems

分布式系统故障卷回恢复技术研究与实践


Replay and Rollback for Distributed System

分布式系统的重放与回退策略


Single SQL statements involved in a deadlock (competition for the same data) can also cause a statement-level rollback.

单个的SQL语句牵涉到一个死锁(同一数据的竞争)同样会造成一个语句级的回滚。


unilateral rollback

单方面压缩


Sysprocesses Is Incorrectly Showing Rollback Status Even Though the Transaction Is Not Rolling Back

即使事务未回滚,系统进程表仍错误地显示回滚状态


rollback recovery

卷回恢复


rollback policy

压价政策 按过去较低成本规定现行产品价格的政策


Use the BEGIN TRANSACTION, COMMIT TRANSACTION, COMMIT WORK, ROLLBACK TRANSACTION, ROLLBACK WORK, and SET IMPLICIT_TRANSACTIONS statements to delineate transactions.

可以使用BEGIN TRANSACTION、COMMIT TRANSACTION、COMMIT WORK、ROLLBACK TRANSACTION、ROLLBACK WORK和SET IMPLICIT_TRANSACTIONS语句来描述事务。


Executing a ROLLBACK TRANSACTION or COMMIT TRANSACTION Transact-SQL statement inside a stored procedure or trigger is possible, but doing so may cause errors.

可以在存储过程或触发器中执行ROLLBACK TRANSACTION或COMMIT TRANSACTION Transact-SQL语句,但这样可能会导致错误。


You can commit or rollback transactions.

可以提交或者回滚事务。


command rollback

命令返回, 命令重算


All modifications associated with incomplete transactions, such as transactions for which there is no COMMIT or ROLLBACK log record, are rolled back.

回滚与未完成的事务(如没有COMMIT或ROLLBACK日志记录的事务)相关联的所有修改。


SQL> rollback to savepoint mark1;

回滚到保存点mark1。


Rollback can be controlled declaratively, not merely programmatically.

回滚可以声明式的控制,不仅仅是编程式的。


Rollback is performed in the reverse order of install.

回滚执行的顺序与安装的顺序相反。


Roll back the uncommitted transactions, but save the rollback operation in a file so the recovery effects can be undone.

回滚未提交的事务,但将回滚操作保存在一个文件中,以便可使恢复效果逆转。


rollback mechanism

回滚机制


rollback segment

回滚段


Set transaction use rollback segment rb

回滚段中的数据


SET TRANSACTION USE ROLLBACK SEGMENT.

回滚段调整的目标。


Rollback - return to some safe state, restart process fro that state.

回退:返回到安全的状态,然后重新开始进程。


EXEC SQL ROLLBACK WORK RELEASE;

回退事务,断开连接。


rollback propagation

回退传播


rollback recurrence

回退循环


Cancellation Strategy in Rollback Mechanism

回退机制中取消策略的研究


Alter rollback segment testrbs offline;

回退段已变更。回退段已删除。


rollback algorithm

回退算法


Rollback Talk Roll back edits

回退编辑搜索结果


In Vault, we select version 6 and choose the Rollback command.

在Vault里面,我们选择版本6然后使用回滚命令。


How to detect and recover from a USN rollback in Windows 2000 Server

在Windows 2000 Server中如何检测USN回滚并利用它进行恢复


Issuing a BEGIN TRANSACTION statement after a rollback will stop the error from being raised, but this could cause problems with application logic.

在回滚后发出BEGIN TRANSACTION语句可以阻止错误的发生,但这样可能会导致应用程序逻辑出现问题。

用作名词(n.)

This operation is a statement-level rollback .
这个操作是一个语句级别的回滚。

Rollback is performed in the reverse order of install.
回滚执行的顺序与安装的顺序相反。

Reformers are calling for a rollback of rules that hinder law enforcement.
改革家们呼吁撤消阻碍法律执行的条令。

Conservatives hoped for a rollback of left - wing support for the controversial new legislation.
保守派希望左派能撤回他们对有争议的新立法的支持。

Absolutely. It's time to take the issue back to Congress,and fight for a rollback of the duration of the copyright term.
现在可以肯定的是,我们应当将这一问题重新提交国会,为著作权保护期的回缩进行斗争。