Glossary term
What is Isolation levels? Meaning for developers
How much concurrent transactions can see of each other. Example: Read Committed, Repeatable Read, Serializable.
Learn it properly · System DesignLesson 21: ACID Transactions & Isolation LevelsTwo people book the last seat; a transfer crashes halfway. What ACID really promises, the write-ahead log behind durability, the five anomalies isolation levels do (and don't) prevent, and the practical fixes for real race conditions.