ORA-26748: The one-to-one transformation function [string] encountered the following error: [string]
Cause: The specified transformation function encountered an error.
Action: 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.
Error Type: ORA