How Recursive Common Table Expressions Work

CTE, recursive queries, WITH,

Recursive Common Table Expressions are immensely useful when you’re querying hierarchical data. Let’s explore what makes them work. Common Table Expressions (CTEs) are some of the most useful constructions in SQL. Their main purpose is improving query design, which makes queries easier to read. One of the reasons CTEs are so popular is that they let you divide longer queries into shorter subqueries. These are easier to read and edit. (For a detailed introduction to CTEs, read this article.) Another

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