> Thanks, but how do you guarantee that these changes to the database won't
> kill the data in the tables? Wouldn't either of these approaches
> for tables
> to lose data content? Don't you have to dump the data out of the database
> to a text file first, then change the schema, then re-import the data back
> again?
>
> Regards,
> Myles
>

heavens no - why would you do that? There's lots of ways to avoid this kind
of thing
Alan