How to fix the Oracle error NNO-00266: cannot find document “string” in configuration database?

In this post, you’ll learn more about the Oracle ErrorNNO-00266: cannot find document “string” in configuration database with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

NNO-00266: cannot find document “string” in configuration database

Reason for the Error NNO-00266: cannot find document “string” in configuration database

Cause: The server encountered an error while trying to get its configuration ID from the configuration database. The error can occur any time the server is unable to access the configuration database. This error will cause the server to shut down.

How to fix the Error NNO-00266: cannot find document “string” in configuration database ?

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

Action: Make sure that the database is running, that its name and password as specified in the Oracle Network Manager are accurate, and that there is SQL*Net connectivity between the Oracle Names server and the database. To force the server to start up anyway, using its checkpoint data, start the server with the names.no_region_database parameter set to TRUE. If no checkpoint data is available, the server will shut down.