Tag: dynamic sampling

  Recently on a heavily used and freshly upgraded 12.1.0.2 ware-house type database, we started seeing lots of ORA-10173 dumped into the alert log. The information out there on this error is somewhat sparse, and it is often linked to…

I’ve been making some tests recently with the new Oracle 12.1.0.2 In-Memory option and have been faced with an unexpected  performance problem.  Here is a test case: Waiting for in-memory segment population: Now let’s make a simple two table join:…