ORA Database Error Messages ORA-12855: cannot run parallel or insert direct load in a loopback August 12, 2015 mpbod ORA-12855: cannot run parallel or insert direct load in a loopback Cause: A loopback was created in the transaction before this operation. Action: Do not use loopback when using pdml or insert direct load. Back to previous menu https://support.oracle.com/ http://www.oracle.com/ Share this:Click to email a link to a friend (Opens in new window)Click to print (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pocket (Opens in new window)