ORA-23449: missing user name
Cause: The user specified by the user name parameter does not exist in the database.
Action: Correct an invalid user name or create the user in the master database. Use the DBA_USERS view to select the valid database users.
Cause: The user specified by the user name parameter does not exist in the database.
Action: Correct an invalid user name or create the user in the master database. Use the DBA_USERS view to select the valid database users.
