Data Engineering Blog - dbt, BigQuery, Analytics Tips | Camille Lebrun — Camille Lebrun

Writing — field notes.

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I Built a RAG for my family’s cat. Here’s what the real work looks like.

groq · Apr 2026

Data architecture: stop worrying about names, start worrying about functions

cloud-computing · Mar 2026

Your GROUP BY is lying to you: 5 window functions that reveal the truth

window-functions · Mar 2026

RANK() vs DENSE_RANK() vs ROW_NUMBER() — when to use which

data-analysis · Mar 2026

Mastering Pivot and Unpivot in BigQuery

analytics · Mar 2025

Best practices for data transformation

data-engineering · Jul 2024