Subqueries and CTEs in SQL

When working with SQL, you eventually run into situations where a single query just isn’t enough. You need to break a problem into parts, compute an intermediate result, and then use that result elsewhere. That’s where subqueries and Common Table Expressions (CTEs) come in. They solve similar problems, but they do it in slightly different ways, and choosing between them can affect not just performance, but also how readable and maintainable your code is. Let's Dive into it; What is a Subquery? A