How to fix the Oracle error QSM-01043: join back attempted on a table to the RHS of a semi or anti join for string?

In this post, you’ll learn more about the Oracle ErrorQSM-01043: join back attempted on a table to the RHS of a semi or anti join for string with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

QSM-01043: join back attempted on a table to the RHS of a semi or anti join for string

Reason for the Error QSM-01043: join back attempted on a table to the RHS of a semi or anti join for string

Query Rewrite will not occur if a join back is required to a table that appears to the right hand side of a semi or anti-join.

How to fix the Error QSM-01043: join back attempted on a table to the RHS of a semi or anti join for string ?

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

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