Re: codd's 12 Rules -- MIDRANGE-L

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Subject: Re: codd's 12 Rules
From: Nathan Andelin <nandelin@xxxxxxxxx>
Date: Fri, 17 May 2013 13:38:21 -0700 (PDT)
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Rule 0 may already be broken

Rule 0: The system must qualify as relational, as a database, and as a management system.

Does IBM i DB not qualify as relational? As a database? As a management system?

since there is a non-relational way to manage the database.

Isn't that a rather narrow interpretation of the rule? And a narrow interpretation of a management system?

-Nathan

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Re: codd's 12 Rules , Vern Hamberg

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