Master Note: Locks, Enqueues and Deadlocks
(Doc ID 1392319.1)
Last updated on MARCH 12, 2021
Oracle Database - Personal Edition - Version 18.104.22.168 and later Oracle Database - Enterprise Edition - Version 22.214.171.124 and later Oracle Database - Standard Edition - Version 126.96.36.199 and later Oracle Database Cloud Schema Service - Version N/A and later Oracle Database Exadata Cloud Machine - Version N/A and later Information in this document applies to any platform.
This document provides an overview reference to content that pertains to the resolution of locks, enqueues and deadlocks affecting the database.
Whole Database "Locking up" or Hanging
If the whole database is "Locking up" or Hanging then this typically is not cause by lock contention and needs to be handled differently. If the database encounters what looks like a hang or a spin conditions refer to the following:
<Document 452358.1> How to Collect Diagnostics for Database Hanging Issues
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