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Additionally, some files lend themselves to a natural unique key, for example Employee I.D. number seems like a natural key for the employee master file and seems an obvious place for a uniquely keyed Physical. On the other hand an Accounts Payable detail file has no obvious unique key nor does it need one. In the second instance a keyed Physical is just trouble waiting to happen. in my 'umble opinion. In <970803180914_74711.77_JHD95-2@CompuServe.COM>, on 08/03/97 at 02:09 PM, John Carr <74711.77@CompuServe.COM> said: It would seem like complications for complications sake to artifically have to have a logical just for a unique key when you have the physical already. -- ----------------------------------------------------------- boothm@earth.goddard.edu ----------------------------------------------------------- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * This is the Midrange System Mailing List! To submit a new message, * * send your mail to "MIDRANGE-L@midrange.com". To unsubscribe from * * this list send email to MAJORDOMO@midrange.com and specify * * 'unsubscribe MIDRANGE-L' in the body of your message. Questions * * should be directed to the list owner / operator: david@midrange.com * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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