1. In Tableau Server or Tableau Online, navigate to a published data source, and then click Ask Data at left. (Ask Data isn't available for data sources embedded in workbooks.)
2. In the text box reading “ Ask about fields in this data source ”, enter terms from the data source fields at left. Hover over each field to learn more about the data it contains. Unlike the data fields seen in standard Tableau views, these fields can't be dragged to the canvas.
3. As you type, Ask Data automatically completes your entry using likely combinations of data fields and analytical functions. To automatically create a viz, either press Enter , or choose from suggested entries below the text box. Just like that, you've created a compelling visualization of your data!