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...
TC15 is coming. With around a week left until conference time, you’re probably thinking that you have plenty of time to get everything together. You’ve already packed everything (you’re THAT excited), the travel logistics have long since been figured out and you’ve successfully pawned off your...
While most of my friends would agree my athletic abilities leave something to be desired, this deficiency does nothing to disparage my passion for enjoying all kinds of sports (In case you were wondering how long we have to wait until the first Hoosier basketball game …)....
I joined InterWorks the same day as Ken McBride, and I wouldn’t have described either of us at that point as Tableau black belts — though we’d sure joined the right dojo! Before long, we were both traveling the world doing Tableau training and consulting,...
I wasn’t expecting anything special to happen on a particular Tuesday in September. Then, I got a note saying there was a package waiting for me. It was from Tableau. I knew that Tableau Zen Masters could be announced soon, so I rushed through Dallas traffic...
If you embed your Tableau analytics dashboards through either a straight embedded i-frame or with the JavaScript API, upgrading your Tableau Server to 9.1 will cause some unexpected grief. But it’s fixable. After upgrading Tableau Server to 9.1, I was getting this error: Refused to display 'https://path/to/my/tableau/dashboard?:embed=y&:showVizHome=n&:tabs=n&:to...
Tableau does a great job of connecting to a variety of databases, but it sometimes needs help on the database end to get the results we need to make hot visualizations. One such example showed itself when connecting to Google BigQuery. The issue? Count distincts. BigQuery doesn't handle count distincts like one...
I've had the pleasure of working with a large number of Tableau Server users and administrators, and by far the most common phrase I hear is "What the [expletive redacted] is up with permissions?!" Permissions in Tableau Server are very simple, given two conditions: Forget everything you...
Tableau Driver's Ed is a new blog series in which we explain InterWorks' unique take on Tableau Drive, a new methodology for enabling self-serve BI in the enterprise. For the full list of posts, check out the Tableau Driver's Ed channel. “The trouble with programmers is that you can...
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...
We’re on a roll, people! For the fifth year running, InterWorks has placed in okc.BIZ’s “Best Places to Work in Oklahoma” list. But this year, things got even more special. We managed to claim the #3 spot in the Small/Medium category, the highest ranking we’ve...
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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