SQL-də CTE və WITH istifadəsi

Learn how to use CTEs and the WITH clause in SQL to write cleaner queries, create step-by-step results, and simplify subqueries. ## Lesson objectives In this lesson, we will learn and the clause in SQL. In the previous lesson, we learned subqueries. A subquery means writing one query inside another query. Subqueries are useful, but when a query becomes larger, nested subqueries can become difficult to read.