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Skip to primary content. Skip to secondary content. 12c New Feature:Temporary Undo. No Comments ↓. 然而，在临时表和索引上操作的undo任然记录到redo log。 Continue reading →. 如何在CentOS 6上安装Python 2.7和Python 3.4. No Comments ↓. 在最新的CentOS release 6.6 (Final) 截至于2014年11月30日是最新系统上默认自带的Python是2.6.6版本，可能是出于安全的原因，导致现有发行版本Python严重落后。本文即讲述如何在CentOS 6上安装Python 2.7和Python 3.4. 安装gcc yum install gcc gcc-c xz openssl*. Python -V Python 2.6.6. Python 2.7.8. Wwwpython.org/ftp/python/2.7.8/Python-2.7.8.tgz. Python 3.4.2. Which python2...

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Z's乱七八糟 | 专注于数据库技术研究 | vydbs.com Reviews

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Skip to primary content. Skip to secondary content. 12c New Feature:Temporary Undo. No Comments ↓. 然而，在临时表和索引上操作的undo任然记录到redo log。 Continue reading →. 如何在CentOS 6上安装Python 2.7和Python 3.4. No Comments ↓. 在最新的CentOS release 6.6 (Final) 截至于2014年11月30日是最新系统上默认自带的Python是2.6.6版本，可能是出于安全的原因，导致现有发行版本Python严重落后。本文即讲述如何在CentOS 6上安装Python 2.7和Python 3.4. 安装gcc yum install gcc gcc-c xz openssl*. Python -V Python 2.6.6. Python 2.7.8. Wwwpython.org/ftp/python/2.7.8/Python-2.7.8.tgz. Python 3.4.2. Which python2&#4...

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7 本文是学习12c新特性的笔记，主要来源于官方文档和ou教材汇总而成

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9 temporary undo是12c的新特性，如下图所示

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z's乱七八糟,专注于数据库技术研究,primary menu,posted on,admin,mdash;,本文是学习12c新特性的笔记，主要来源于官方文档和ou教材汇总而成,什么是临时undo,temporary undo是12c的新特性，如下图所示,性能提升主要是因为实际上修改临时表没有redo条目直接产生,临时表的undo，在该临时对象的其生命期的一致性读和事务回滚是有用的,超出此范围的undo是多余的,因此它在redo流中不需要持续,举例来说，事务恢复只是丢弃临时对象的undo,tagged

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Skip to primary content. Skip to secondary content. 12c New Feature:Temporary Undo. No Comments ↓. 然而，在临时表和索引上操作的undo任然记录到redo log。 Continue reading →. 如何在CentOS 6上安装Python 2.7和Python 3.4. No Comments ↓. 在最新的CentOS release 6.6 (Final) 截至于2014年11月30日是最新系统上默认自带的Python是2.6.6版本，可能是出于安全的原因，导致现有发行版本Python严重落后。本文即讲述如何在CentOS 6上安装Python 2.7和Python 3.4. 安装gcc yum install gcc gcc-c xz openssl*. Python -V Python 2.6.6. Python 2.7.8. Wwwpython.org/ftp/python/2.7.8/Python-2.7.8.tgz. Python 3.4.2. Which python2&#4...

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Skip to primary content. Skip to secondary content. 12c New Feature:Temporary Undo. No Comments ↓. 然而，在临时表和索引上操作的undo任然记录到redo log。 Continue reading →. 如何在CentOS 6上安装Python 2.7和Python 3.4. No Comments ↓. 在最新的CentOS release 6.6 (Final) 截至于2014年11月30日是最新系统上默认自带的Python是2.6.6版本，可能是出于安全的原因，导致现有发行版本Python严重落后。本文即讲述如何在CentOS 6上安装Python 2.7和Python 3.4. 安装gcc yum install gcc gcc-c xz openssl*. Python -V Python 2.6.6. Python 2.7.8. Wwwpython.org/ftp/python/2.7.8/Python-2.7.8.tgz. Python 3.4.2. Which python2&#4...

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Skip to primary content. Skip to secondary content. 12c New Feature:Temporary Undo. No Comments ↓. 然而，在临时表和索引上操作的undo任然记录到redo log。 Continue reading →. 如何在CentOS 6上安装Python 2.7和Python 3.4. No Comments ↓. 在最新的CentOS release 6.6 (Final) 截至于2014年11月30日是最新系统上默认自带的Python是2.6.6版本，可能是出于安全的原因，导致现有发行版本Python严重落后。本文即讲述如何在CentOS 6上安装Python 2.7和Python 3.4. 安装gcc yum install gcc gcc-c xz openssl*. Python -V Python 2.6.6. Python 2.7.8. Wwwpython.org/ftp/python/2.7.8/Python-2.7.8.tgz. Python 3.4.2. Which python2&#4...

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