How to fix the Oracle error QSM-01214: query rewrite not possible if OR is the top level operator in query WHERE clause?

In this post, you’ll learn more about the Oracle ErrorQSM-01214: query rewrite not possible if OR is the top level operator in query WHERE clause with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

QSM-01214: query rewrite not possible if OR is the top level operator in query WHERE clause

Reason for the Error QSM-01214: query rewrite not possible if OR is the top level operator in query WHERE clause

If the top-level operator in the WHERE clause is an OR and there is more than one table in the FROM list, then query rewrite will not take place.

How to fix the Error QSM-01214: query rewrite not possible if OR is the top level operator in query WHERE clause ?

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

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