How do I create a doughnut chart in Tableau in 10 easy steps?

We had a quick data viz session the other day at work and one of the points that came up was how visualizing with a doughnut chart is generally a better technique than using a regular pie chart. But why is that? • interpreting  % share of totals is easier in a doughnut chart as reading is … Continue reading How do I create a doughnut chart in Tableau in 10 easy steps?

How do I analyse a string length and punctuation with SQL?

Need a quick re-cap of some of the text functions in SQL? By using a combination of them, you can:  count the number of words in a string find if a string starts with a number find if a string contains a particular punctuation sign find if a string ends in a particular punctuation sign … Continue reading How do I analyse a string length and punctuation with SQL?