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
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