---
title: "Discussion on \"Isolation Levels in Databases: Read Committed, Repeatable Read, Snapshot, and Serializable Explained\" | Hashnode"
description: "Discussion on \"Isolation Levels in Databases: Read Committed, Repeatable Read, Snapshot, and Serializable Explained\". What read committed commits to, why repeatable read still allows phantoms in some databases, and when you actually need serializable isolation"
url: "https://hashnode.com/posts/isolation-levels-in-databases/69d26f728210934357c8904e"
---

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# [Isolation Levels in Databases: Read Committed, Repeatable Read, Snapshot, and Serializable Explained](https://abstractalgorithms.hashnode.dev/isolation-levels-in-databases?utm_source=hashnode&utm_medium=feed)

What read committed commits to, why repeatable read still allows phantoms in some databases, and when you actually need serializable isolation

Apr 5 · 28 min read · abstractalgorithms.hashnode.dev  
Updated Jun 18  
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-   [#databases](https://hashnode.com/tag/databases)
-   [#transactions](https://hashnode.com/tag/transactions)
-   [#isolation](https://hashnode.com/tag/isolation)
-   [#sql](https://hashnode.com/tag/sql)
-   [#consistency](https://hashnode.com/tag/consistency)
-   [#acid](https://hashnode.com/tag/acid)

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