ORA Database Error Messages ORA-13427: invalid BLOB parameter for output August 13, 2015 mpbod ORA-13427: invalid BLOB parameter for output Cause: The specified output BLOB parameter was invalid. Action: Make sure the output BLOB parameter is initialized properly. Back to previous menu 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)