The installers for Tableau Server and Tableau Server Workers automatically install drivers for Oracle and Oracle Essbase databases. If you plan to publish workbooks and data sources that connect to other databases, you will need to make sure that both your primary and worker servers have the corresponding drivers.
Workers running VizQL, application server, data server, or backgrounder processes need these database drivers. For example, if you have a worker dedicated as a VizQL server and another computer dedicated to extract storage, you only need to install drivers on the computer running the VizQL server process.
|Server process||Requires database driver?|
|Data engine (extract storage)||no|
|Search & Browse||no|