ORA Database Error Messages ORA-26740: cannot downgrade because there are file groups July 12, 2017 mpbod ORA-26740: cannot downgrade because there are file groups Cause: An attempt was made to downgrade a database that has file groups Action: Drop all file groups before attempting the downgrade 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)