Adding an identity to an existing column

Question

I need to change the primary key of a table to an identity column, and there\'s already a number of rows in table.

I\'ve got a script to clean up the IDs to ensure

Answer 1

There isn't one, sadly; the IDENTITY property belongs to the table rather than the column.

The easier way is to do it in the GUI, but if this isn't an option, you can go the long way around of copying the data, dropping the column, re-adding it with identity, and putting the data back.

See here for a blow-by-blow account.