ORA Database Error Messages ORA-12227: TNS:syntax error August 4, 2015 mpbod ORA-12227: TNS:syntax error Cause: The supplied connect descriptor contains illegal syntax. Action: Check the syntax of the connect descriptor in TNSNAMES.ORA. 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)