>>I know, use NextID table and all that, but let's say, for the sake of argument that I want to create a unique integer from a datetime value and an already existing integer. How can I create the final unique integer?
>
>You can subtract the given datetime minus a specific datetime, such as datetime(2000, 1, 1, 0, 0, 0). This will give you the difference in seconds. From there, you can add another integer.
>
>But as to ensuring uniqueness, that will be rather tricky. Perhaps a (VFP) integer is simply too small for your requirements.

Great minds <g> I was thinking exactly that, but if your datetime field is not unique, how would you get unique values?