How to fix the Oracle error NID-00137: All datafiles that are not dropped should be readable?

In this post, you’ll learn more about the Oracle ErrorNID-00137: All datafiles that are not dropped should be readable with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

NID-00137: All datafiles that are not dropped should be readable

Reason for the Error NID-00137: All datafiles that are not dropped should be readable

The database had one or more files that could not be read.

How to fix the Error NID-00137: All datafiles that are not dropped should be readable ?

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

Restore the missing files and retry the operation.