Christian wrote:

>Because nobody answered to Subject 'Change Datatype', i will ask in a
>different way.
>
>I use following statements for converting a primary key with smallint
>datatype to an integer datatype:
>
>
>

You can do that in the easy way with IBexpert Personal edition (is free).
Dont konw if Database Workbech also do it.

HTH.

German.