Binary Tree Nodes | HackerRank SQL Problem (English)
✅ Problem Link: https://www.hackerrank.com/challenges...
Problem Name: Binary Tree Nodes
Difficulty Level: Medium
Key topics here:
CTE (Common Table Expression)
Aggregate Function
Group By
📝 Solution Script: https://drive.google.com/file/d/1m9CF...
📝 BST table Create and Insert Script: https://drive.google.com/file/d/1sCgm...
✴️ To learn about CTE, check this videos:
• CTE | Common Table Expression (part-1) | N...
• Recursive CTE | Common Table Expression (p...
✴️ To learn about Aggregate and Group By check this video:
• Group By Clause | SQL Server For Beginners...
✅ SQL Server For Beginners (Complete): • SQL Server For Beginners
Timestamps
00:00 Problem Statement
02:09 Solution
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