2012年6月2日
Oracle Core 学习笔记一 -- Redo 和 Undo 机制详解
摘要： The single mostimportant feature of Oracle is one that first appeared in version 6: the changevector, a mechanism for describing changes to data blocks, the heart of redoand undo. --对于Oracle来说，最具有革命性的新特性莫过于Oracle 6时出现的改变向量(changevector)；改变向量：即描述数据块更改的信息, change vector 也是redo 和undo的核心。This is thetec. 阅读全文
posted @ 2012-06-02 19:00 davedba 阅读(404) 评论(0) 推荐(0)
Oracle Core 学习笔记一 -- Redo 和 Undo 机制详解
摘要： The single mostimportant feature of Oracle is one that first appeared in version 6: the changevector, a mechanism for describing changes to data blocks, the heart of redoand undo. --对于Oracle来说，最具有革命性的新特性莫过于Oracle 6时出现的改变向量(changevector)；改变向量：即描述数据块更改的信息, change vector 也是redo 和undo的核心。This is thetec. 阅读全文
posted @ 2012-06-02 19:00 davedba 阅读(338) 评论(0) 推荐(0)