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.
Global Temporary Tables and Upgrading to Oracle Database 12c - Don't Get Caught Out - Prior to Oracle Database 12c, global temporary tables (GTTs) shared statistics between sessions, so each GTT had one set of statistics visible to all ses...
2 days ago