Lưu trữ tác giả: Gong Elijah

Essential Questions Interns Should Ask First: The Lessons From My First ELT Transformation

The First ETL Push in a T Job: Essential Questions Interns Should Ask First This is a reflection written about my first ETL push to production after my second T project. The honest version. It is a reflection about what I would have wanted to know looking back at that point of time and a […]

Part 2: How Our Data Warehouse Used to Work — and Why We Needed to Change

Part 2: The New Data Layer — Vatico Training ✓ The Old Layer(Part 1 — Done) 2 The New Layer(You are here) In Part 1, we covered how Vatico’s original data warehouse worked — a flat collection of ~400 purpose-built tables — and why that approach started to break down as the business grew. In […]

Part 1: How Our Data Warehouse Used to Work — and Why We Needed to Change

Part 1: How Our Old Data Layer Worked — Vatico Training 1 The Old Layer(You are here) 2 The New Layer(Part 2) If you are reading this on your first or second week, welcome. Before we talk about how our data warehouse works today (28 July 2026), it helps to understand how it worked before […]