RE: Bind variable peeking and Dynamic sampling

If the issue is changing plans, and you think you want to keep the same
plan, I would say you want to use profiles to store the optimal plans,
not dynamic sampling.

 

-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of fairlie rego
Sent: Tuesday, May 08, 2007 3:43 AM
To: Oracle-L
Subject: Bind variable peeking and Dynamic sampling 

 

Hi,

 

I am at a site which is a high intensive OLTP site doing more than 400
txns/sec on a 8 node cluster on 10.1.0.5 RAC. We are thinking of
switching off bind variable peeking and looking into an optimal value of
dynamic sampling since we have plans flipping all the time and causing
havoc.

 

I would like to know if there are any other customers who have disabled
bind variable peeking and what value of dynamic sampling is being used
by them

 

Thanks

Fairlie

 

 

 

Fairlie Rego
Senior Oracle Consultant

http://el-caro.blogspot.com/

M: +61 402 792 405

 

  

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