Stop Using CSVs in Big Data: Here's Why You Should Learn Apache Iceberg

Title: ETL vs ELT: Explained with Pizza Delivery Analogy 🍕

1. Meet the Two Delivery Styles

   • ETL = cook before delivering (Transform before Load)
   • ELT = deliver ingredients, cook at your place (Load then Transform)

2. Why This Analogy Works in Data Pipelines

3. Pros & Cons of ETL and ELT

4. Popular Tools for Each Approach

5. How Modern Data Lakes Prefer ELT (Hint: Iceberg + OLake fit here)

6. TL;DR Chart + Recap