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...
Quantified self visualizations predominantly focus on daytime activity, not sleep habits. Perhaps this is because it’s one of the most difficult things to accurately measure, or maybe it doesn’t seem like an interesting data set. But, anyone with a newborn in the house knows how...
Today we’re examining the following guideline: "Watch for useless clauses, e.g. ORDER BY. Tableau is going to re-sort the data once loaded anyway." Let’s get started! SQL Overview SQL, or Structured Query Language, is designed for managing data within a relational database. It is essentially composed of two parts: Data...
Currently, we’re going through the best ways to employ custom SQL and what to avoid. Here’s what we’ll cover today: "Avoid parameters in custom SQL in Tableau. Tableau wraps the custom SQL in a subquery that many databases don’t handle well. Consider building a view in the...
The annual Tableau Conference (formerly known as TCC) is one of my favorite parts about working at InterWorks and being a part of the Tableau Community. I get to meet all sorts of new Tableau users and attend fascinating sessions and keynotes. Some of last...
Why do you need to monitor the performance of your environment? Your Tableau Server is a key element within your Tableau world, and for many people this is all they see of Tableau. They don’t get to play with Tableau Desktop, but they are the consumers...
Fantasy Football has become an incredible phenomenon in the United States. According to FSTA, over 56 million people will participate in some form of fantasy sports in 2015 with 73% playing fantasy football. I first started in 2007 as a means to socialize with coworkers at...
There’s been a lot of coverage of wildfires in the United States this year, particularly in the Pacific Northwest, where some of the largest fires are consuming hundreds of thousands of acres. To bring some context, I scraped data from the US Forest Service’s website...
A week or two ago, we received notice from the folks over at Inc. that InterWorks would again be listed on the annual Inc. 5000 list of Fastest Growing Private Companies. For those counting, this will be our eighth year making the cut, and we came...
Approximately 8.2 million people live within the five boroughs that make up New York City. Every year, thousands of accidents occur due to a multitude of contributing factors. NYPD collects information about each of those accidents and provides it for public use on nycopendata.socrata.com. We...
The rule that we’ll cover today is: "Limit custom SQL in live connections as they can be inefficient. Where possible, create a view on the database server to implement your custom SQL and connect Tableau to your view." In other environments and in other tools, using your...
Over the last twenty years, video games have become a cultural force in America. From movie spin-offs to t-shirts at Target, it's almost impossible not to be touched by the gaming industry every day, even if you don't consider yourself a "gamer." In this period...
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