TNS Database Error Messages TNS-12646: Invalid value specified for boolean parameter December 17, 2020 mpbod TNS-12646: Invalid value specified for boolean parameter Cause: The value specified for a parameter was set to a value other than true/false or on/off. Action: Correct the value of the parameter. 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)