ITPub博客

首页 > 应用开发 > IT综合 > Undo Mode (30)

Undo Mode (30)

原创 IT综合 作者:tsinglee 时间:2007-09-14 16:09:12 0 删除 编辑

Undo mode provides a more flexible way to migrate from manual undo management
to automatic undo management. A database system can run in either manual undo
management mode or automatic undo management mode. In manual undo
management mode, undo space is managed through rollback segments. In automatic
undo management mode, undo space is managed in undo tablespaces. To use
automatic undo management mode, the database administrator needs only to create
an undo tablespace for each instance and set the UNDO_MANAGEMENT initialization
parameter to AUTO. You are strongly encouraged to run in automatic undo
management mode.

使用AUM:
1. 创建undo tablespace
2. UNDO_MANAGEMENT设置为AUTO

[@more@]

来自 “ ITPUB博客 ” ,链接:http://blog.itpub.net/10599713/viewspace-969422/,如需转载,请注明出处,否则将追究法律责任。

下一篇:
请登录后发表评论 登录
全部评论
  • 博文量
    740
  • 访问量
    1897665