Learn the cause and how to resolve the ORA-01435 error message in Oracle.
When you encounter an ORA-01435 error, the following error message will appear:
You tried to reference a user that does not exist. This most likely occurred in a GRANT or REVOKE statement.
The option(s) to resolve this Oracle error are:
Check to make sure that the user exists.
You can find a listing of all users with the following SQL statement:
SELECT * FROM all_users;