Hey experts, We recently took over administration over a particular database, and after a while the application owner asked for a server reboot. When digging a little, apparently they have some performance issues and believe that recylcing the instance will solve them. I am usually against rebooting servers, specially UNIX servers, but CT asked for it. They have their own DBA who agrees that an instance recycle solves the problem. My question is bacially, is this only superstition or is there any technical fact that can support this? Of course, Clearing Caches would be beneficial, but it's a 10.1.0.5 database, so I'm not sure it's really necessary (I have detected no signs of memory leaks and memory is being used well). On the other hand, there are a few queries with over 500 executions/day that perform a full table scan on a 19M records table... and I think that the performance issues *could* be tracked to those. CT is being a bit stubborn and won't allow for further investigation, but I'm certain this will happen again in about two or three months, and I want to be prepared with as much technical data and documentation as possible to oppose this 'Windows Approach' to solving a performance Issue Thank you very much Alan Bort Oracle Certified Associate http://cicciuxdba.blogspot.com -- //www.freelists.org/webpage/oracle-l