David Newman wrote:

> [...]
> Then use update statements to populate the column. This is left as
> an exercise to the reader.
> [...]

I probably should have been more precise. I already know how to create
the new column and how to make it a primary key after it has been
filled, the only thing I have not found yet is how to populate it with
unique numbers.

Anyway, thanks for the reply.

Jens