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 --------------------------------- Ahhh...imagining that irresistible "new car" smell? Check outnew cars at Yahoo! Autos.