Waymo SQL Interview Prep: LeetCode 608 Tree Node (How to Use CASE WHEN ELSE) #shorts
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Waymo SQL Interview Prep: LeetCode 608 Tree Node (How to Use CASE WHEN ELSE) #shorts
Can you classify tree nodes in SQL? 🌳 In this Short, we solve LeetCode 608: Tree Node using MS SQL Server. We use a CASE statement and subqueries to quickly identify: 🚩 Root: No parent. nodes 🚩 Inner: Has a parent AND children. 🍃 Leaf: Has a parent but NO children. Subscribe for more rapid-fire SQL interview solutions! #SQL # ...
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