There is a compatibility issue with VFP and SQL Server.

An Integer max and min values in VFP is from -2,147,483,647 through 2,147,483,647

And in SQL Server from -2,147,483,648 through 2,147,483,647

This can cause a problem when storing a value of -2,147,483,648 in SQL Server and attempting to use it in VFP.

This compatibility issue was present in VFP8 and is still there in VFP9 Beta.