在SQL Server 2005中，如何设置整数列以确保值大于0？

This is probably a simple answer but I can't find it. I have a table with a column of integers and I want to ensure that when a row is inserted that the value in this column is greater than zero. I could do this on the code side but thought it would be best to enforce it on the table.This is probably a simple answer but I can't fi