I have a table in which one of the column is UniqueIdentifier. I have NULLS from records 1 through 91 and then after I have records populated in the table. I need to fill up the NULLS with UniqueIdentifier. Can you please help me.
My only concern is if I update the table now, after few months when new UniqueIdentifier gets generated as part of our ETL, which is once a day, should not cause duplicates.