a theoretical question

From: Andrey Bronfin <andreyb_at_elrontelesoft.com>
Date: Mon, 08 Apr 2002 05:23:24 -0800
Message-ID: <F001.0043E2FC.20020408052324@fatcity.com>

Deart gurus !
I'm just wondering what happens in this situation : i issue the following SQL :
update AAA set BBB=0 where ROWID='XXXXXXXXX' ; Now , if the value of the BBB column is already 0 for the given row (or a set of rows) , what will actually happen behind the curtains ? I mean, will Oracle somehow detect that actually the update does not need to occur , or will it perform the update regardless of the current values of the columns .

Thanks a lot,
DBAndrey

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Author: Andrey Bronfin
  INET: andreyb_at_elrontelesoft.com

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