BigData / Tableau Interview Questions
What is a Tableau action?
An action defines a piece of interactivity: clicking or hovering over a mark in one worksheet triggers a change somewhere else — another worksheet, a dashboard, or even an external URL — turning static charts into an interconnected experience.
| Filter Action | Highlight Action | URL Action | Parameter Action |
| Selecting a mark filters other worksheets to match it. | Selecting a mark highlights matching marks elsewhere, without filtering. | Selecting a mark opens a web page, passing field values into the URL. | Selecting a mark updates a parameter's value. |
Dashboard menu -> Actions -> Add Action -> Filter Source sheet: Sales by Region Target sheet: Sales by Product Run action on: Select
Actions are configured at the dashboard level (or via worksheet-level "Actions" for some types) and can be triggered by Select, Hover, or Menu click, giving fine control over exactly how much interactivity a viewer gets before something on the dashboard responds.
Which action type updates a value that other calculations depend on, rather than filtering or highlighting?
What three triggers can Tableau dashboard actions run on?
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