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Re: Read-only tablespaces and the undo log

From: et <et_at_kp.com>
Date: Sun, 20 Feb 2005 17:21:39 +0000 (UTC)
Message-ID: <cvagv3$au4$1@hercules.btinternet.com> 





Hi,



> SELECTS never produce undo or redo because a SELECT does not change data.

> Only INSERT,UPDATE & DELETE produce undo & redo segments.




Selects can also generate redo - in case of delayed block cleanout for 
example.



Tanel. 
Received on Sun Feb 20 2005 - 11:21:39 CST












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