I Built a 20-Hour DBMS Interview Prep System Using LLMs — Does It Actually Work?

I used LLMs to build a complete DBMS interview prep system. Here's exactly how - and I want your honest feedback. Instead of randomly Googling "DBMS interview questions", I ran an experiment using LLMs as my study partner. The results surprised me. Step 1: Curate the right questions I asked the LLM: "What are the most frequently asked DBMS questions in senior backend interviews?", not once, but iteratively. I cross-referenced across difficulty levels, topics, and interview formats until I had a distilled list of 100 questions spanning 10 modules - from basics like normalisation all the way to replication, sharding, and MVCC. Step 2: Find the minimal set of resources Here's where it got interesting. I gave the LLM my 100 questions and asked: "What is the smallest set of resources that covers all of these with zero overlap?" It mapped every question to exactly 3 resources: InterviewBit DBMS/SQL articles (free) - for fundamentals + SQL practice DDIA by Martin Kleppmann (only 5 specific ch