SQL Server 2005 ROW_NUMBER() without ORDER BY

Question

I am trying to insert from one table into another using

DECLARE @IDOffset int;
SELECT @IDOffset = MAX(ISNULL(ID,0)) FROM TargetTable

INSERT INTO TargetTable         


        

Answer 1

You can ignore the ordering by using order by (select null) like this:

declare @IDOffset int;
select  @IDOffset = max(isnull(ID, 0)) from TargetTable

insert  into TargetTable(ID, FIELD)
select  row_number() over (order by (select null)) + @IDOffset, FeildValue
  from  SourceTable
 where  [somecondition]