>My company has a legacy system running pure VFP8.
>One of our client wants to move to sql server as a back end.
>We thought about rewriting the app using c#.
>But have decided to use the same VFP code and simply adding SQL server capability...... with same table structures.
>
>So, the app can run in full VFP mode. or full SQL SERVER mode.
>
>Can anyone make an argument AGAINST doing such thing?
>
>Thanks in advance..

I support your suggestion. I have done the same by adding business classes for each table, which makes it possible to change data source by simply setting a property. And since this can be done separately for every table, you don't have to switch every table simultaneously. One thing I recommend though, is to use VFP9 instead of VFP8, since there are so many more tools available for VFP9. Thor is only one of them.