>>I disagree. If the user intentionally moved through the field and left it empty, then it should be an empty string. NULL reflects that the field was never tabbed into or out of - never touched at all or n/a.
>
>That's the idea I had in my head and I wasn't following it.
Does it matter in the end why comment is empty? If it does use NULL/empty string combination, otherwise empty string.
--sb--