CS7 - Crafting modular SQL queries

Writing Modular, Reusable, and Readable SQL Queries

Writing Cleaner SQL Queries with CTEs

SQL queries can quickly become a tangled mess—hard to read, difficult to maintain, and nearly impossible to debug. But what if you could break them down into clear, modular steps? Enter Common Table Expressions (CTEs), a powerful SQL feature that makes queries more structured, readable, and reusable.

In this article, we’ll explore how CTEs help standardize metrics, improve collaboration, and make SQL logic easier to follow.

Before starting, here you have the full-resolution cheatsheet 👇🏻