Undo Information的意思|示意
撤销信息
Undo Information的网络常见释义
恢复信息 Oracle数据库系统在运行Insert、Update、Delete时都需要一个磁盘空间来存放恢复信息(Undo Information),以便在进行恢复时能将原来信息读出来。安装后的回滚段表空间是RBS表空间。
撤销信息 ...文档原话:在一个修改了数据的事务(transaction)被提交之前,Oracle进行了以下操作:Oracle生成了撤销信息(undo information)。撤销信息包含了事务中各个 SQL 语句所修改的数据的原始值。
清除回滚段中的恢复信息 清除回滚段中的恢复信息(Undo Information); 一能访问特定内部数据字典的用户。
Undo Information相关例句
As work progresses in a transaction, an application can append the undo information and reserve space for compensation records.
当工作在交易中进行时,应用程序可以附加复原资讯并保留补偿记录的空间。
"Transparency gives the reader information by which she can undo some of the unintended effects of the ever-present biases," he said in a blog post last year.
“透明度提供读者以信息,以此她可以不受经常存在的偏见的潜移默化的影响,”他在去年的一篇博文中谈道。
Our databases use their logs for before and after images of data (Undo and do records) and state information.
数据库在数据(Undo和do记录)和状态信息映象之前和之后使用日志。
The transaction log records the start of each transaction, the changes to the data, and, if necessary, enough information to undo the modifications made during that transaction.
事务日志记录每个事务的启动、数据更改,必要时还记录用于撤消在该事务中所做修改的足够信息。