 );
 GO
 
-CREATE TYPE [guacamole_connection_group_type] FROM [nvarchar](16) NOT NULL;
+CREATE TYPE [guacamole_connection_group_type] FROM [nvarchar](16);
 EXEC sp_bindrule
     'guacamole_connection_group_type_list',
     'guacamole_connection_group_type';

);
GO

CREATE TYPE [guacamole_system_permission] FROM [nvarchar](32) NOT NULL;
EXEC sp_bindrule
    'guacamole_system_permission_list',
    'guacamole_system_permission';

);
GO

CREATE TYPE [guacamole_proxy_encryption_method] FROM [nvarchar](8);
EXEC sp_bindrule
    'guacamole_proxy_encryption_method_list',
    'guacamole_proxy_encryption_method';
