Do you SQL? Salesforce Marketing Cloud

If you asked me “how do you find segmentation in Salesforce Marketing Cloud?” a few years ago, at the beginning of my experience with the tool, I would have rolled my eyes.
Yes, I said it, I would have rolled my eyes.

Why? Well, I am not a developer, I am not a coder and let’s say the user interface for segmentation in SFMC is quite limited compared to other technologies I have worked with in the past.
Sure, we can filter data extensions, split them, clone them and potentially use data relationship to connect multiple tables and cross…