Why Do B-Trees Have N Keys and N+1 Child Pointers?

In this video, I break down the reasoning behind this unique structure of B-Trees and explain how it ensures efficient data storage and retrieval in databases. By understanding this fundamental concept, you’ll gain deeper insights into why B-Trees are widely used in indexing and database systems.

📌 In this video, you’ll learn:

The basic structure of a B-Tree node
Why each node has
n keys and n+1 child pointers
How separator keys organise data in B-Trees
The role of child pointers in maintaining balance and efficiency

If you’re preparing for a system design interview or looking to strengthen your knowledge of database internals, this video will help you understand a key concept behind the B-Tree data structure.

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