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In this video, I explained how indexing speeds up databases by reducing disk I/O. I delved into the basics of database structure, disk block reading, and the role of indexes. Without indexes, reading all rows sequentially can be slow, but with indexes, queries become much faster. I demonstrated how creating an index on a specific column can significantly enhance query performance. By efficiently utilizing indexes, database operations can achieve up to an 8x improvement in speed, showcasing the crucial role of indexes in optimizing database performance.

# 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

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