ORA Database Error Messages ORA-07469: sppst: mclear error, unable to clear semaphore July 15, 2015 mpbod ORA-07469: sppst: mclear error, unable to clear semaphore Cause: The mclear routine returned an error. Semaphore may not exist. Action: Check result code in sercerrno. Semaphore number returned in sercose[0]. 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)