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Detecting Blocking Sessions in RAC and non-RAC (Enqueue Locks) Environments (Doc ID 398519.1)

Last updated on JULY 18, 2023

Applies to:

Oracle Database - Enterprise Edition - Version 7.3.4.0 and later
Oracle Database Cloud Exadata 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 Service - Version N/A and later
Information in this document applies to any platform.

Goal

Script and explanation for finding blocking and blocked sessions in both RAC (multi instance) and non-RAC (single instance) environments.

Solution

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In this Document
Goal
Solution
 Purpose
 Requirements
 Configuring
 Instructions
 Script 
 Sample Output

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