The vast, vast majority of my RAG work has been with unstructured data. I wanted to mix in some structured data so I took this course.
Udemy course: https://www.udemy.com/course/knowledge-graphs-rag
My notes: https://docs.google.com/document/d/1H09vOeLs8wYiJcSFAuZC8XxMKBXKLHxQtJYMbP8wCdc/edit?usp=sharing
The course was a good refresher – I remembered more than I thought I did. I did learn of a neat tool for data relationship exploration – neo4j.