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From: Georg Bauhaus <sb463ba@l1-hrz.uni-duisburg.de>
Newsgroups: comp.lang.ada
Subject: Re: Windows Ada database support.
Date: Wed, 8 Dec 2004 15:58:44 +0000 (UTC)
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Date: 2004-12-08T15:58:44+00:00
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Dmitry A. Kazakov <mailbox@dmitry-kazakov.de> wrote:
: Again, there are two different questions. I have already formulated them in
: another post:
: 
: 1. Why relations should be handled?
: 2. Why Ada cannot handle them?
: 
: To dismiss Ada.Database.Relational, we have to answer 1=yes, 2=no,
: because...

Ada the language does not have what SQL processors do have.
You would have to build some sort of DKQL processor in your
Ada.Databases.Relational. Go ahead :-)
 

: I would like to view it as a distributed system
: and get rid of the notion of DB altogether. Only persistent objects. No
: I/O, just memory-mappings. [ Clearly, in any short term perspective it is
: an utopia. ]

Say all you have is persistent objects. What kind of query do you
have if you want to know about 2 or more objects?