ORA Database Error Messages ORA-18015: invalid source outline signature March 24, 2016 mpbod ORA-18015: invalid source outline signature Cause: User imported an 8i outline into a 9i database without updating signatures Action: execute dbms_outln.update_signatures 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)