How to fix the Oracle error ORA-29821: specified primary operator does not exist?

In this post, you’ll learn more about the Oracle ErrorORA-29821: specified primary operator does not exist with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-29821: specified primary operator does not exist

Reason for the Error ORA-29821: specified primary operator does not exist

The specified primary operator does not exist.

How to fix the Error ORA-29821: specified primary operator does not exist ?

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

Check the primary operator and the signature specified.