ORA Database Error Messages ORA-12504: TNS:listener was not given the SID in CONNECT_DATA August 6, 2015 mpbod ORA-12504: TNS:listener was not given the SID in CONNECT_DATA Cause: The SID was missing from the CONNECT_DATA. Action: Check that the connect descriptor corresponding to the service name in TNSNAMES.ORA has an SID component in the CONNECT_DATA. 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)