Transactions

• Database Internals: Storage Engines, Transactions, and Recovery · 2025-12-21

  A deep technical walkthrough of how databases store data, ensure correctness, and recover from crashes — covering B-trees, LSM-trees, write-ahead logging, MVCC, isolation levels, and replication.

• Write-Ahead Logging: The Unsung Hero of Database Durability · 2024-09-10

  Dive deep into write-ahead logging (WAL), the technique that lets databases promise durability without sacrificing performance. Learn how WAL works, why it matters, and how modern systems push its limits.