TNS Database Error Messages TNS-00107: Unable to initialize TNS global data September 30, 2020 mpbod TNS-00107: Unable to initialize TNS global data Cause: This message is not normally visible to the user. Action: If the error persists, contact Oracle Support Services. 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)