ORA-01955
        Role "role_name" not granted to the user.
        - role_name: The role name being set as the default role.
        Cause
        The user being altered did not have the specified role granted.
        Action
        Grant the role to the user and set it as a default role.
        
     
    
    
        ORA-01955
        DEFAULT ROLE 'string' not granted to user
        
        
        Cause
        The user being altered does not have the specified role granted directly to the user.  Note, sub-roles cannot be used in the default role clause.
        Action
        Grant the role to the user.
        
     
    
    
        ORA-01955
        DEFAULT ROLE 'string' not granted to user
        
        
        Cause
        The user being altered does not have the specified role granted directly to the user.  Note, sub-roles cannot be used in the default role clause.
        Action
        Grant the role to the user.