Re: The job of a relational DBMS

From: Gene Wirchenko <>
Date: Tue, 01 Dec 2009 19:06:06 -0800
Message-ID: <>

On Tue, 01 Dec 2009 20:48:33 +0100, Shakespeare <> wrote:


>>> A relation does not have order. This would not be a relation
>>> select clicode,cliname from clients order by clicode
>>> because of the order by clause.
>I thought that one was about the order of attributes, not rows.

     It is both. Remember that a relation is a set of tuples. A set has no order.



Gene Wirchenko Received on Tue Dec 01 2009 - 21:06:06 CST

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