ORA Database Error Messages ORA-21615: copy of an OTS (named or simple) instance failed November 24, 2016 mpbod ORA-21615: copy of an OTS (named or simple) instance failed Cause: see following message Action: Check that no attribute value violates constraints 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)