RE: normalization

  • From: "David Wendelken" <davewendelken@xxxxxxxxxxxxx>
  • To: "'Oracle-L Freelists'" <Oracle-L@xxxxxxxxxxxxx>
  • Date: Tue, 1 Nov 2005 21:45:21 -0500

>
>
>BEFORE ROW triggers also need to lock each target row, even if 
>nothing is done. This doubles the number of current mode 
>buffer gets and increases redo generation significantly.
>

Given that the reason the before row trigger fires is because we are FOR
SURE about to change the row, I would expect that we have to pay for the
lock ANYWAY...


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