IssueWhen Tableau Desktop and Tableau Server are connected to an Oracle Database v12.2, the following errors occur in the database logs:
"ORA-03137: malformed TTC packet from client rejected.
Bad TTC Packet Detected."
Upgrade Tableau to one of these versions: 10.3.13, 10.4.9, 10.5.6, 2018.1.3, or 2018.2.1 - or later. To install the latest releases, go here.
Customize the TDC file hosted on Tableau, by adding the following mark up to the attached TDC file: oracle2.tdc
<connection-customization class='oracle' version='10.00' enabled='true'>
<vendor name='oracle' />
<driver name='oracle' />
<customization name='CAP_ORACLE_SUPPRESS_TTC_PACKET_ERROR' value='yes' />
The .tdc file should be copied to one of the following locations, depending on both product and OS: