If you have a performance problem and don't have license to use Active Session History
you can use a free version of it. It is not using a direct SGA access but it is designed by Kyle Hailey
- one of OEM Performance tab designer.
When I read about direct access to X$ table using a oradebug utility on
Miladin Modrakovic's blog I started to wonder if this two technologies can be combined.
Unfortunately I have tested direct access using oradebug and CPU usage is unexpected high on my VM machine and in that case direct access can disrupt our observations.
Optimizer Feature Differences Between Oracle Database Releases - Each time we release a new version of the Oracle Database we publish a white paper that covers what's in the new in the Oracle Optimizer. It's pretty com...
13 hours ago