You've loaded your data into Power BI. You've got the tables. Now what are you expected to do?
Here's the thing most beginners skip: how your tables connect to each other is more important than the data inside them. A poorly structured model will give you wrong numbers, slow reports and a difficult time every time you try to add a new chart.
This week we're covering the foundation of Power BI, data modeling. Specifically: what kinds of tables exist, how schemas work, what relationships are and what joins are doing behind the scenes.
One thing that took me a while to get in Power BI is that loading data is only half the job. The other half is telling Power BI how your tables talk to each other. That's what schemas, relationships and joins are about.
The Problem I hadn't anticipated
