TNS Database Error Messages TNS-00104: Data stream open/access error September 30, 2020 mpbod TNS-00104: Data stream open/access error Cause: Unable to open or access data stream for either log or trace files for the Interchange. Action: Check read/write permissions on Oracle files and directories. 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)