Database Error Messages

ORA-12935

operation [string] to database (service 'string') failed (error string)

Cause

The process performing replacement of nonlogged blocks received an error when attempting to connect (CONNECT) or make a fetch request (REQUEST) against the database identified by the given service. The database was expected to act as a source of replacement blocks.


Action

Use the reported error to identify the issue or inspect any additional error messages and check the alert log for any messages related to Nonlogged Block Replacement (NBR).