>So why is that SQL Server integer definition is:
>
>integer or int
>Has a length of 4 bytes, and stores numbers from -2,147,483,648 through 2,147,483,647.

It's probably handling the math slightly differently. Consider that -2 ^ 31 = -2,147,483,648 and 2 ^ 31 - 1 = 2,147,483,647. This is how SQL Server defines an integer. VFP does the subtraction on both equations not just the one, reserving that for zero.