converting to the cost based optimizer

From: Steve McClure <smcclure_at_usscript.com>
Date: Tue, 19 Nov 2002 13:13:54 -0800
Message-ID: <F001.00507322.20021119131354@fatcity.com>

I am just starting to look at converting to the cost based optimizer, and am hoping a few of you can share insights from having done so in the past. Our application is an oltp system developed on 7.3.4. We made liberal use of +0 and other RBO "hints", and I am wondering if these are going to cause us troubles when switching to CBO.

  We have been on 8i since April of this year, and I am just now starting to gather information on the inner workings of the CBO. I know it is where I want to be, I am just looking to see how painful/painless the transition will be.

Steve McClure

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Author: Steve McClure
  INET: smcclure_at_usscript.com

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