Using INDEX() to Solve your Top N Problems

If you are new to Tableau or you have not encountered the INDEX() function before you are probably familiar with your filters behaving oddly. The traditional filter use behaves like an AND statement, do the more filters you use and the more complex the view becomes...

Dashboard Week: Day 1 – MealDB API

  This week in the Data School is dashboard week. This is a week of projects where we receive a challenge each day that we must wrangle the data and build a dashboard in the same day. MealDB Up first is a challenge using the MealDB API, an online database of...

A bit about SQL

Tomorrow, we have our first official SQL training at the Data School. Therefore, I thought it would be good practice for me to write a blog introducing the basics of Structured Query Language (SQL) as a refresher. There are a few types of SQL from PostgresSQL, MySQL,...