How to fix the Oracle error ORA-22064: invalid NLS parameter string [string]?

In this post, you’ll learn more about the Oracle ErrorORA-22064: invalid NLS parameter string [string] with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-22064: invalid NLS parameter string [string]

Reason for the Error ORA-22064: invalid NLS parameter string [string]

The NLS parameter string for converting characters to or from an Oracle number is invalid.

How to fix the Error ORA-22064: invalid NLS parameter string [string] ?

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

Use valid format string as documented in OCI Programmer’s Guide.