ORA Database Error Messages ORA-12445: cannot change HIDDEN property of column August 6, 2015 mpbod ORA-12445: cannot change HIDDEN property of column Cause: You tried to specify a different HIDE option for a table with an existing policy column. Action: Drop the column from the table and reapply the policy with the new HIDE option. 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)