Hi, "enabled by default" - is not exactly true. The INMEMORY pool is zero by default, but I must confess I did not check how usage watermarks for the option are checked. Regards Martin Am 25.07.2014 18:36, schrieb Powell, Mark: > I will add that this feature while enabled by default is extra-cost, very > expensive extra-cost at that. > > > -----Original Message----- > Oracle tells us that InMemory will care for everything. But as usual, the BUT > is well covered. In my recent blog post > > "Oracle 12c InMemory - don't stop thinking about performance" > http://www.usn-it.de/index.php/2014/07/25/oracle-12c-inmemory-dont-stop-thinking-about-performance/-- > -- Usn's IT Blog for Oracle and Linux http://www.usn-it.de performing databases Your reliability. Our concern. http://www.performing-databases.com -- //www.freelists.org/webpage/oracle-l