INSTEAD OF UPDATE，是否可以在不列出列的情况下更新列？

Question

我已经创建了一个触发器，并且如果该列已更新，我希望它对列的值执行一个功能，否则我只想正常更新。为了使数据库更易于维护，我不想列出要更新的列，因为我不想在向表中添加/删除列时更新触发器。

CREATE TRIGGER modify_country_code
ON Location
INSTEAD OF UPDATE
AS
BEGIN

    IF UPDATE(CountryCode)
        BEGIN

            -- This works if I am only updating the CountryCode column. But if updating
            -- multiple columns, the other columns are not updated (obviously)
            UPDATE Location
            SET Location.CountryCode = dbo.MyFunction(inserted.CountryCode)
            FROM inserted
            WHERE Location.Id = inserted.Id

        END
    ELSE
        BEGIN
            UPDATE Location
            -- possible to perform an update without listing the columns?
        END

END