[FAQ Bot] NEW: Why do my SQL LEFT JOIN queries return NULL values in some columns? #116
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✨ FAQ NEW
Course: machine-learning-zoomcamp
Section: general (Placed under General to cover a generic SQL concept not tied to a specific module.)
Related Issue: #115
Question
Why do my SQL LEFT JOIN queries return NULL values in some columns?
Decision Rationale
The proposal asks about SQL LEFT JOIN behavior returning NULLs, which is not covered by any existing ML-focused FAQs in the repository. It should be added as a new general question.
Placement Details
generalwhy-left-join-returns-null🤖 Generated by FAQ Bot
Closes #115