How to fix the Oracle error NNC-00403: program interface has not been initialised?

In this post, you’ll learn more about the Oracle ErrorNNC-00403: program interface has not been initialised with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

NNC-00403: program interface has not been initialised

Reason for the Error NNC-00403: program interface has not been initialised

Cause: An internal function has attempted to de-initialise the name service program interface when it has not yet been initialised.

How to fix the Error NNC-00403: program interface has not been initialised ?

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

Action: Not normally visible to the user. For further details, turn on tracing and re-execute the failing operation. If the error persists, contact Worldwide Customer Support.