How to fix the Oracle error NNO-00264: configuration database query returned no data?

In this post, you’ll learn more about the Oracle ErrorNNO-00264: configuration database query returned no data with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

NNO-00264: configuration database query returned no data

Reason for the Error NNO-00264: configuration database query returned no data

Cause: the server attempted to fetch data from the configuration database and no data was found.

How to fix the Error NNO-00264: configuration database query returned no data ?

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

Action: The error generally appears underneath a more specific error which will tell you the exact nature of the problem.