In the previous article of this Deep Dive on LODs, we talked about Detail in general for Tableau Desktop. In Part 2, we’ll explore the Include level of detail calculation. Start With the Data Before I go into Tableau Desktop, I always think it’s foundationally important to...
The first item in the Rendering category is: "Avoid high mark counts. More marks = longer rendering time." Let’s jump right in on this one. Mark Counts Marks are the points, plots or symbols on your visualization. They can be the bars in your horizontal bar graph or the...
Here’s the next item on the Performance Checklist: "Avoid row-level calculations involving parameters." Let's first take a look at what row-level calculations are. Row-Level Calculations Row-level calculations, also known as record-level calculations, operate on every record in the underlying data. An example of a row-level calculation is an IF...
Next up on the list of ways to make your dashboards be the best they can be, we take a closer look at blended calculations: "Limit blended calculations. They require sequentially querying multiple data sources and can be time-consuming. Where possible, create a view on the...
Let’s examine the following item on the checklist: "Use calculated fields carefully. Think about the data type as you code the calculation. Number and Boolean > date > string calculations when it comes to performance." This is another item that can quickly get you into performance trouble...
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