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Selected Java Interview Questions
Selected Java Interview Questions
Sep 17, 2020 · Databases

Understanding MySQL Gap Locks and Next‑Key Locks with Practical Examples

This article explains how InnoDB implements row locks, gap locks, and next‑key locks to prevent phantom reads, describes how the lock ranges are determined, and demonstrates their effects through multiple transaction scenarios with detailed SQL code examples.

Gap LockInnoDBMySQL
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Understanding MySQL Gap Locks and Next‑Key Locks with Practical Examples