ORA Database Error Messages ORA-13156: table to be registered string.string is not empty August 12, 2015 mpbod ORA-13156: table to be registered string.string is not empty Cause: The specified table has rows in it. Action: Make sure that the table to be registered is empty. 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)