Why Do Databases Use B+ Trees for Data Storage? | System Design & Redis Internals
Learn how B+ trees optimize database storage, enhance search efficiency, and are crucial for system design and Redis internals. Perfect for SDE-2 and above! π

Arpit Bhayani
81.3K views β’ Mar 19, 2023

About this video
System Design for SDE-2 and above: https://arpitbhayani.me/masterclass
System Design for Beginners: https://arpitbhayani.me/sys-design
Redis Internals: https://arpitbhayani.me/redis
Build Your Own Redis / DNS / BitTorrent / SQLite - with CodeCrafters.
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In the video, I discussed the evolution of storage from naive implementations to optimized B plus trees in databases. I explained the need for using B plus trees, how table data is stored in them, and how the tree is serialized and stored on disk. I also introduced a system design course I offer. I highlighted the limitations of naive data storage methods like linear scans and explained how B plus trees solve efficiency issues in insertions, updates, finds, deletes, and range queries by organizing data into nodes on disk.
# Recommended videos and playlists
If you liked this video, you will find the following videos and playlists helpful
System Design: https://www.youtube.com/watch?v=o7qLKfILuD8&list=PLsdq-3Z1EPT27BuTnJ_trF7BsaTpYLqst
Designing Microservices: https://www.youtube.com/watch?v=JPj6mhVLQN0&list=PLsdq-3Z1EPT0ug8eizS71G6LZb6-4FAFt
Database Engineering: https://www.youtube.com/watch?v=-htbah3eCYg&list=PLsdq-3Z1EPT2C-Da7Jscr7NptGcIZgQ2l&pp=gAQBiAQB
Concurrency In-depth: https://www.youtube.com/watch?v=2PjlaUnrAMQ&list=PLsdq-3Z1EPT3VjDhjMb5yBsgn0wn2-fjp
Research paper dissections: https://www.youtube.com/watch?v=LXhgFAZroG8&list=PLsdq-3Z1EPT2XEJ0AmF02LBK1RFNd-jK8
Outage Dissections: https://www.youtube.com/watch?v=LeT_s-UFw-U&list=PLsdq-3Z1EPT3_Z97svMs6S2y7tv1PcUmc
Hash Table Internals: https://www.youtube.com/watch?v=jjW8w8ED3Ns&list=PLsdq-3Z1EPT2UnueESBLReaVSLIo_BuAc
Bittorrent Internals: https://www.youtube.com/watch?v=v7cR0ZolaUA&list=PLsdq-3Z1EPT1rNeq2GXpnivaWINnOaCd0
# Things you will find amusing
Knowledge Base: https://arpitbhayani.me/knowledge-base
Bookshelf: https://arpitbhayani.me/bookshelf
Papershelf: https://arpitbhayani.me/papershelf
# Other socials
I keep writing and sharing my practical experience and learnings every day, so if you resonate then follow along. I keep it no fluff.
LinkedIn: https://linkedin.com/in/arpitbhayani
Twitter: https://twitter.com/arpit_bhayani
Weekly Newsletter: https://arpit.substack.com
Thank you for watching and supporting! it means a ton.
I am on a mission to bring out the best engineering stories from around the world and make you all fall in love with engineering. If you resonate with this then follow along, I always keep it no-fluff.
System Design for Beginners: https://arpitbhayani.me/sys-design
Redis Internals: https://arpitbhayani.me/redis
Build Your Own Redis / DNS / BitTorrent / SQLite - with CodeCrafters.
Sign up and get 40% off - https://app.codecrafters.io/join?via=arpitbbhayani
In the video, I discussed the evolution of storage from naive implementations to optimized B plus trees in databases. I explained the need for using B plus trees, how table data is stored in them, and how the tree is serialized and stored on disk. I also introduced a system design course I offer. I highlighted the limitations of naive data storage methods like linear scans and explained how B plus trees solve efficiency issues in insertions, updates, finds, deletes, and range queries by organizing data into nodes on disk.
# Recommended videos and playlists
If you liked this video, you will find the following videos and playlists helpful
System Design: https://www.youtube.com/watch?v=o7qLKfILuD8&list=PLsdq-3Z1EPT27BuTnJ_trF7BsaTpYLqst
Designing Microservices: https://www.youtube.com/watch?v=JPj6mhVLQN0&list=PLsdq-3Z1EPT0ug8eizS71G6LZb6-4FAFt
Database Engineering: https://www.youtube.com/watch?v=-htbah3eCYg&list=PLsdq-3Z1EPT2C-Da7Jscr7NptGcIZgQ2l&pp=gAQBiAQB
Concurrency In-depth: https://www.youtube.com/watch?v=2PjlaUnrAMQ&list=PLsdq-3Z1EPT3VjDhjMb5yBsgn0wn2-fjp
Research paper dissections: https://www.youtube.com/watch?v=LXhgFAZroG8&list=PLsdq-3Z1EPT2XEJ0AmF02LBK1RFNd-jK8
Outage Dissections: https://www.youtube.com/watch?v=LeT_s-UFw-U&list=PLsdq-3Z1EPT3_Z97svMs6S2y7tv1PcUmc
Hash Table Internals: https://www.youtube.com/watch?v=jjW8w8ED3Ns&list=PLsdq-3Z1EPT2UnueESBLReaVSLIo_BuAc
Bittorrent Internals: https://www.youtube.com/watch?v=v7cR0ZolaUA&list=PLsdq-3Z1EPT1rNeq2GXpnivaWINnOaCd0
# Things you will find amusing
Knowledge Base: https://arpitbhayani.me/knowledge-base
Bookshelf: https://arpitbhayani.me/bookshelf
Papershelf: https://arpitbhayani.me/papershelf
# Other socials
I keep writing and sharing my practical experience and learnings every day, so if you resonate then follow along. I keep it no fluff.
LinkedIn: https://linkedin.com/in/arpitbhayani
Twitter: https://twitter.com/arpit_bhayani
Weekly Newsletter: https://arpit.substack.com
Thank you for watching and supporting! it means a ton.
I am on a mission to bring out the best engineering stories from around the world and make you all fall in love with engineering. If you resonate with this then follow along, I always keep it no-fluff.
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Video Information
Views
81.3K
Likes
2.6K
Duration
29:43
Published
Mar 19, 2023
User Reviews
4.7
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