How to fix the Oracle error ORA-08458: invalid format parameter?

In this post, you’ll learn more about the Oracle ErrorORA-08458: invalid format parameter with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-08458: invalid format parameter

Reason for the Error ORA-08458: invalid format parameter

The format parameter passed to a UTL_PG conversion routine was invalid. The format parameter should have been built by a prior call to either MAKE_RAW_TO_NUMBER_FORMAT or MAKE_NUMBER_TO_RAW_FORMAT.

How to fix the Error ORA-08458: invalid format parameter ?

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

Check to be sure that the format parameter was built by MAKE_RAW_TO_NUMBER_FORMAT or MAKE_NUMBER_TO_RAW_FORMAT, and that it was not accidentally overwritten or modified by the PL/SQL procedure.