RMAN Database Error Messages RMAN-11004: format requires %c when duplexing February 11, 2021 mpbod RMAN-11004: format requires %c when duplexing Cause: SET_DUPLEX=ON was specified, but %c was not part of the format. Action: Include %c in format, or use %U. 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)