create procedure sys.sp_MSgetmissingbm
	@objid int,
	@missingbm varbinary(128) output,
	@missingcolcount int output
as
	set nocount on

	declare @maxcolid int
	declare @idx int

	select @maxcolid= max(column_id) from sys.columns where object_id = @objid
	if @maxcolid is null return 1

	set @missingbm= null
	set @missingcolcount= 0
	set @idx= 1

	while @idx <= @maxcolid
	begin
		if not exists (select * from sys.columns where object_id = @objid and column_id = @idx)
		begin
			exec sys.sp_MSsetbit
					@bm= @missingbm output,
					@coltoadd= @idx

			set @missingcolcount= @missingcolcount + 1
		end

		set @idx= @idx + 1
	end

	return 0