---
title: "Elie Fayad (@efayad) | Hashnode"
description: "Data made easy. Read the latest articles by Elie Fayad on Hashnode."
url: "https://hashnode.com/@efayad"
---

@efayad

# Elie Fayad

@efayad · Rome, Italy · Joined March 2025

Data made easy

### [5 Schema Models That Can Make or Break Your Data Platform](https://datainbites.hashnode.dev/5-schema-models-that-can-make-or-break-your-data-platform?utm_source=hashnode&utm_medium=feed)

Learn the strengths, trade-offs, and real-world implications of 5 key schema strategies.

8 min read · [datainbites.hashnode.dev](https://datainbites.hashnode.dev/5-schema-models-that-can-make-or-break-your-data-platform?utm_source=hashnode&utm_medium=feed)

[Jul 17, 2025](https://hashnode.com/posts/5-schema-models-that-can-make-or-break-your-data-platform/6878dee964bd70edb9cbb8c9)

### [Mastering SQL Recursion: From Theory to Practice with Key Use Cases (Part 3)](https://datainbites.hashnode.dev/mastering-sql-recursion-part-3?utm_source=hashnode&utm_medium=feed)

From cost calculation to network paths: practical uses of SQL recursion.

15 min read · [datainbites.hashnode.dev](https://datainbites.hashnode.dev/mastering-sql-recursion-part-3?utm_source=hashnode&utm_medium=feed)

[Jun 26, 2025](https://hashnode.com/posts/mastering-sql-recursion-part-3/685d2f6426c1ef0175ef4444)

### [Managing Historical Data with Slowly Changing Dimensions](https://datainbites.hashnode.dev/managing-historical-data-with-slowly-changing-dimensions?utm_source=hashnode&utm_medium=feed)

Explore SCD types and how to choose the right one for your business needs.

13 min read · [datainbites.hashnode.dev](https://datainbites.hashnode.dev/managing-historical-data-with-slowly-changing-dimensions?utm_source=hashnode&utm_medium=feed)

[Jun 5, 2025](https://hashnode.com/posts/managing-historical-data-with-slowly-changing-dimensions/68417fd33858e88c344cc3c1)

### [Performance Matters: A SQL Optimization Guide for Data Professionals](https://datainbites.hashnode.dev/sql-optimization-guide?utm_source=hashnode&utm_medium=feed)

Your go-to resource for writing clean, efficient, and scalable SQL.

8 min read · [datainbites.hashnode.dev](https://datainbites.hashnode.dev/sql-optimization-guide?utm_source=hashnode&utm_medium=feed)

[May 15, 2025](https://hashnode.com/posts/sql-optimization-guide/6825da8b66d99528eb4ff47d)

### [Mastering SQL Recursion: Advanced Techniques for Handling Hierarchies, Cycles, and Optimization (Part 2)](https://datainbites.hashnode.dev/mastering-sql-recursion-part-2?utm_source=hashnode&utm_medium=feed)

How to Prevent Infinite Loops, Break Cyclic Dependencies, and Optimize Recursive Query Performance

16 min read · [datainbites.hashnode.dev](https://datainbites.hashnode.dev/mastering-sql-recursion-part-2?utm_source=hashnode&utm_medium=feed)

[Apr 24, 2025](https://hashnode.com/posts/mastering-sql-recursion-part-2/680a19c83618d6018bd35bd1)