How to fix the Oracle error QSM-02007: multiple instances of the same table or view?

In this post, you’ll learn more about the Oracle ErrorQSM-02007: multiple instances of the same table or view with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

QSM-02007: multiple instances of the same table or view

Reason for the Error QSM-02007: multiple instances of the same table or view

The capability in question is not supported when the same table or view occurs more than once in the FROM list.

How to fix the Error QSM-02007: multiple instances of the same table or view ?

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

Re-phrase the query to avoid multiple instances of the same table. For instance,