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How to Diagnose ORA-01436 While Refreshing a Refresh Group (Doc ID 793843.1)

Last updated on OCTOBER 01, 2019

Applies to:

Oracle Database - Enterprise Edition - Version 9.2.0.6 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.
***Checked for relevance on 21-Mar-2012***


Goal

How to find the cause and try to eliminate the error ORA-01436 'CONNECT BY loop in user data' during the refresh of a Materialized View Refresh Group.

Solution

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In this Document
Goal
Solution
 Step 1: Determine the SQL that is failing:
 Step 2: Identify the rows in the result set that cause the error:
 Step 3: Investigate the materialized view objects involved in the circular reference:

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