ORA Database Error Messages ORA-12496: cannot change existing level, category, or release numbers August 6, 2015 mpbod ORA-12496: cannot change existing level, category, or release numbers Cause: You attempted to change the number assigned to level, category or releasability category. Action: Change the character string representations, not the numbers. 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)