How to fix the Oracle error ORA-01481: invalid number format model?

In this post, you’ll learn more about the Oracle ErrorORA-01481: invalid number format model with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-01481: invalid number format model

Reason for the Error ORA-01481: invalid number format model

The user is attempting to either convert a number to a string via TO_CHAR or a string to a number via TO_NUMBER and has supplied an invalid number format model parameter.

How to fix the Error ORA-01481: invalid number format model ?

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

Consult your manual.