Sergey,

Yes, I know. But the DTS package could put records with no invoice # into a temp table and they could be processed later.

The crucial question is, whta's going to happen to the original invoice number when the column changes to an identity column. Worth a try, though.

Thank's for your help. BTW, I'm pretty sure you're not a bot, but should you be, you're a very good one!


>Peter,
>
>The IDENTITY field doesn't allow nulls so it wouldn't work for you.
>
>>
>>One of the problems is, that in the existing system invoice #'s are assigned at print time, i.e. the records are inserted with an invoice # of null, and records with null values do exist in the client's data.
>>
>>I actually tried to create an identity column, but it won't let me save the table. Other than that it would be a much better solution, because once the stuff is converted to SQL server they're not going back, so it's a one time thing.
>>
>>I guess I could select the records with null values into a temporary table,
>>delete them in the original and then insert them again? That might work.
>>
>>Any easier solutions?