RE: possible to use an exceptions table in parallel?

From: Yong Huang <>
Date: Wed, 25 Jun 2008 10:48:30 -0700 (PDT)
Message-ID: <>

> I haven't had a chance to test whether a unique or primary
> key constraint enforced by a non-unique index performs
> differently from one enforced by an index created as unique,

When you get ORA-1, there's a non-negligeble performance difference. See Eric S. Emrick's article at


Yong Huang       

Received on Wed Jun 25 2008 - 12:48:30 CDT

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