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RE: query slow in 9i, but not slow in 8i

From: Duret, Kathy <>
Date: Mon, 1 Mar 2004 11:24:38 -0600
Message-ID: <>

I don't know your whole issue, but I opened up a tar with oracle as 80% as our sql when waaaaay slower when we switched one of our production systems over to 9i.
They told us to use:_complex_view_merging=false and this solved our problem (your mileage may vary)

However, we have optimizer_max_permutations=80000 like oracle 8i (the old dba must have been a carry over from 8i).

Haven't had time to see if setting the max permutations to 2000 solved our problems or not.


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Received on Mon Mar 01 2004 - 11:21:37 CST

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