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Re: Initial Draft Finding on Principle of Least Power

From: <noah_mendelsohn@us.ibm.com>
Date: Tue, 20 Dec 2005 09:37:10 -0500
To: Elliotte Harold <elharo@metalab.unc.edu>
Cc: www-tag@w3.org, chamberl@almaden.ibm.com
Message-ID: <OF4FA252FB.9C72B8F7-ON852570DD.004FFD85-852570DD.00504EA1@lotus.com>

Elliotte:

> The first paragraph in section 1 states that SQL is Turing complete.
> I could be wrong about this, and it could depend on the dialect, but
> I don't think SQL is Turing complete, at least not in its usual 
> standard incarnation.

Thanks for catching this.  I share your suspicion that SQL is not in fact 
Turing Complete.  The assertion that it is appears in Tim's original at 
[1], and was carried over to the draft finding[2].  I'll put it on the To 
Do list to check up and correct as necessary.  I'm also copying Don 
Chamberlin, who presumably can set us straight quickly.   Thank you.

Noah

[1] http://www.w3.org/DesignIssues/Principles.html#PLP
[2] http://www.w3.org/2001/tag/doc/leastPower-2005-12-19.html

--------------------------------------
Noah Mendelsohn 
IBM Corporation
One Rogers Street
Cambridge, MA 02142
1-617-693-4036
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Elliotte Harold <elharo@metalab.unc.edu>
12/20/2005 03:40 AM
 
        To:     noah_mendelsohn@us.ibm.com
        cc:     www-tag@w3.org
        Subject:        Re: Initial Draft Finding on Principle of Least 
Power


The first paragraph in section 1 states that SQL is Turing complete. I 
could be wrong about this, and it could depend on the dialect, but I 
don't think SQL is Turing complete, at least not in its usual standard 
incarnation. A quick Google search on "SQL Turing complete" turned up 
these:

http://en.wikipedia.org/wiki/Turing-complete
http://www.biglist.com/lists/xsl-list/archives/200207/msg00704.html

-- 
Elliotte Rusty Harold  elharo@metalab.unc.edu
XML in a Nutshell 3rd Edition Just Published!
http://www.cafeconleche.org/books/xian3/
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Received on Tuesday, 20 December 2005 14:37:37 GMT

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