Comments on: what is data_object_id? http://www.orawh.com/62.html Just another WordPress weblog Fri, 25 Jul 2008 03:27:09 +0000 http://wordpress.org/?v=2.1.3 By: 日月明王 http://www.orawh.com/62.html#comment-13 日月明王 Fri, 24 Feb 2006 01:55:11 +0000 http://www.orawh.com/62.html#comment-13 data_object_id的最终用处是什么？ data_object_id的最终用处是什么？

]]> By: jametong http://www.orawh.com/62.html#comment-54 jametong Fri, 09 Jun 2006 07:48:11 +0000 http://www.orawh.com/62.html#comment-54 data_object_id的最主要的用户就是方便物理对象的管理啊.... 比如我们做alter table exchange partition的时候, 就可以直接修改object_id与data_object_id的对应关系, 就可以实现这个操作. 具体可以自己操作一下.. select object_id,data_object_id from obj where object_name in ('',''); alter session set events '10046 trace name context ,level 8'; alter table tab_name exchange partition with table tab_name; alter session set events '10046 trace name context off'; select object_id,data_object_id from obj where object_name in ('',''); data_object_id的最主要的用户就是方便物理对象的管理啊….

比如我们做alter table exchange partition的时候, 就可以直接修改object_id与data_object_id的对应关系, 就可以实现这个操作.

具体可以自己操作一下..
select object_id,data_object_id from obj where object_name in (”,”);
alter session set events ‘10046 trace name context ,level 8′;
alter table tab_name exchange partition with table tab_name;
alter session set events ‘10046 trace name context off’;
select object_id,data_object_id from obj where object_name in (”,”);

]]> By: fangyingsi http://www.orawh.com/62.html#comment-2590 fangyingsi Mon, 17 Sep 2007 08:58:59 +0000 http://www.orawh.com/62.html#comment-2590 明白了，谢谢。 明白了，谢谢。

]]> By: ora110 http://www.orawh.com/62.html#comment-2591 ora110 Mon, 17 Sep 2007 14:51:59 +0000 http://www.orawh.com/62.html#comment-2591 老帖。 老帖。

]]> By: 冰冻奶茶 http://www.orawh.com/62.html#comment-5186 冰冻奶茶 Mon, 10 Dec 2007 07:26:12 +0000 http://www.orawh.com/62.html#comment-5186 当表中没有记录的时候进行truncate的话 data_object_id是不会发生变化的 当表中没有记录的时候进行truncate的话
data_object_id是不会发生变化的

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