Hi, I'm Jamal Hansen

Technical deep dives into SQL, Python, and AI development. I document what I learn building with data and language models.

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Learning Paths

SQL for Python Developers
I vibe coded and lived to tell
AWS Data Engineer Associate Certification

Latest Articles

Your Notes Need Metadata: Make Your Wiki Queryable
CTEs: Making Your SQL Readable
The Road to Agentic Notes
Subqueries: When SQL Needs Helper Functions
Copy and Paste Long Enough and the Architecture Appears