1 of 1 people found this helpful
In my opinion top BI people are business people with a good knowledge of IT. A report you deliver is information for the business to make informed decisions - therefore you need to understand what they want and why when often they don't know what they want - or at least aren't able to articulate this. Therefore you need to learn business.
You also need to know the technical. I personally believe SQL is essential to use Tableau well. To learn Tableau study the online courses, perhaps take a classroom lesson...and spend a lot of time answering questions on this forum :-)
Understanding data models, data structure is vital in my opinion