Re: Natural keys vs Aritficial Keys
Date: Sun, 17 May 2009 21:36:45 GMT
"Walter Mitty" <wamitty_at_verizon.net> wrote:
>One nitpick. A GPS device gives you a measure of where something is, not a
>key to its location, unless I misunderstand how GPS works.
>Using measures in place of keys is tricky, even though it looks simple at
"give the guys a device which had a hand held computer of some sort with a bar code reader and a GPS. "
So you have three pieces of data, bar code number identifying the peice, location and date/time.
-- Tony Toews, Microsoft Access MVP Tony's Main MS Access pages - http://www.granite.ab.ca/accsmstr.htm Tony's Microsoft Access Blog - http://msmvps.com/blogs/access/ Granite Fleet Manager http://www.granitefleet.com/Received on Sun May 17 2009 - 23:36:45 CEST