How to fix the Oracle error ORA-13903: Invalid combination of string threshold value and operator.?

In this post, you’ll learn more about the Oracle ErrorORA-13903: Invalid combination of string threshold value and operator. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-13903: Invalid combination of string threshold value and operator.

Reason for the Error ORA-13903: Invalid combination of string threshold value and operator.

A non-positive number was used for “Blocked User Session Count” metrics while operator contains equal.

How to fix the Error ORA-13903: Invalid combination of string threshold value and operator. ?

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

Use a positive number for the threshold value or use “greater than” operator.