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Article Metadata: 資料庫的 Transaction Isolation Level ​

Frontmatter ​

yaml
layout: doc
title: "[Daily Questions Challenge 16] 資料庫的 Transaction Isolation Level：四種隔離等級與 Read Anomaly"
description: 介紹資料庫 Transaction Isolation Level 的四個標準等級，說明 Dirty Read、Non-repeatable Read、Phantom Read 三種 Anomaly，並以 Mermaid 圖示各等級的行為差異。
date: 2026-06-10
avatar: /daily-questions-challenge.png
tags:
  - Backend
  - Database

File Details ​

  • Target path: docs/tech/posts/2026-06-10-transaction-isolation-level.md
  • Daily Questions Challenge number: #16
  • Pinned: false

Pinned Index Changes (docs/tech/posts/2026-05-26-daily-questions-challenge-2026.md) ​

  1. Move from ### Backend to new ### Database section:

    • [資料庫層級避免 Race Condition 的方法 (Atomic Update、Lock、欄位型別防禦)](./2026-06-01-race-condition-atomic-update-lock.md)

  2. Add to ### Database section:

    • [資料庫的 Transaction Isolation Level：四種隔離等級與 Read Anomaly](./2026-06-10-transaction-isolation-level.md)