Recursive Tree Traversal and While Loops in SQL Server: A Performance Comparison

Tien Nguyen
3 min readDec 19, 2023

Navigating hierarchical data in databases is a common challenge in software development. In SQL Server, two popular methods for traversing such data are Recursive Common Table Expressions (CTEs) and WHILE loops. In this blog post, we'll explore these two methods, complete with code examples, and discuss which one is typically more optimal in various scenarios.

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Tien Nguyen

Senior Analyst with a strong passion for data and business strategy. "Learner/Sharer/Improver/Doer"