How to resolve ORA-01436 Error Message in Oracle database

Learn the cause and how to get to the bottom of the ORA-01436 error message in Oracle.

Description

When you stumble upon an ORA-01436 error, the following error message will appear:

ORA-01436: CONNECT BY loop in user data

Cause

An endless loop used to be created by means of the circumstance distinctive in the CONNECT BY clause.

Resolution

The option(s) to resolve this Oracle error are:

Option #1

This error takes place when the situation in the CONNECT BY clause selects the subsequent record that is a descendent of itself. This creates a circular reference or limitless loop.

Correct the CONNECT BY clause to put off the round reference.