How to fix the Oracle error PLS-00619: the first operand in the NULLIF expression must not be NULL?

In this post, you’ll learn more about the Oracle ErrorPLS-00619: the first operand in the NULLIF expression must not be NULL with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

PLS-00619: the first operand in the NULLIF expression must not be NULL

Reason for the Error PLS-00619: the first operand in the NULLIF expression must not be NULL

The first operand in the NULLIF expression is the literal NULL.

How to fix the Error PLS-00619: the first operand in the NULLIF expression must not be NULL ?

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

Change the first operand in the NULLIF expression to be non-NULL.