TNS Database Error Messages TNS-00509: Buffer overflow October 9, 2020 mpbod TNS-00509: Buffer overflow Cause: Too much data for buffer. Action: Re-execute with larger receive buffer or smaller send buffer. 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)