Re: undo and insert

From: A Joshi <ajoshi977_at_yahoo.com>
Date: Wed, 24 Dec 2003 12:44:24 -0800
Message-ID: <F001.005DB074.20031224124424@fatcity.com>

I have a related question : What about update? In rollback segment :
Will it store the whole row for before image or just the changed column
and rowid. Is there a way to get the size of the rollback from some
where in the database. or v$ views. Like we can get an idea about redo
size from redo log files generated. Thank you

zhu chao <chao_ping@vip.163.com> wrote:

For insert, in order to rollback, Oracle will still have to get the rowid of the new inserted rows, so that it can rollback when needed.
So there will still be undo.

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Author: A Joshi
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Received on Wed Dec 24 2003 - 14:44:24 CST