Primary Note: Locks, Enqueues and Deadlocks
(Doc ID 1392319.1)
Last updated on MARCH 21, 2022
Applies to:
Oracle Cloud Infrastructure - Database Service - Version N/A and later Oracle Database Backup Service - Version N/A and later Oracle Database Exadata Express Cloud Service - Version N/A and later Oracle Database Cloud Exadata Service - Version N/A and later Oracle Database Cloud Service - Version N/A and later Information in this document applies to any platform.
Purpose
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
Questions and Answers
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