>I take it. But IMO, when the length is N(4,2) and you try to save the value such as 1234, FoxPro should trigger an error like ‘numeric overflow’ instead of keeping silent. If you update the table with such values and browse, it really looks awful.

I agree with you that Foxpro shouldn't allow such things but that's the way it is now. Anyway, it's resposibility of application (programmer) to validate data before store it in the table.