ORA Database Error Messages ORA-12150: TNS:unable to send data August 4, 2015 mpbod ORA-12150: TNS:unable to send data Cause: Unable to send data. Connection probably disconnected. Action: Reestablish connection. If the error is persistent, turn on tracing and reexecute the operation. 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)