How to fix the Oracle error ORA-26748: The one-to-one transformation function string encountered the following error: string?

In this post, you’ll learn more about the Oracle ErrorORA-26748: The one-to-one transformation function string encountered the following error: string with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-26748: The one-to-one transformation function string encountered the following error: string

Reason for the Error ORA-26748: The one-to-one transformation function string encountered the following error: string

The specified transformation function encountered an error.

How to fix the Error ORA-26748: The one-to-one transformation function string encountered the following error: string ?

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

Ensure that the function does not return an LCR that has a different type from the LCR which was passed to the function. Also ensure that the function does not return NULL. For DDL transformation functions, creating and returning a new DDL LCR is not allowed.