How to fix the Oracle error ORA-32620: illegal subquery within MODEL rules?

In this post, you’ll learn more about the Oracle ErrorORA-32620: illegal subquery within MODEL rules with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-32620: illegal subquery within MODEL rules

Reason for the Error ORA-32620: illegal subquery within MODEL rules

A subquery was used illegally within the MODEL rule.

How to fix the Error ORA-32620: illegal subquery within MODEL rules ?

You can fix this error in Oracle by following the below steps

Check the SQL statement and rewrite if necessary.