Re: Nulls, integrity, the closed world assumption and events
From: Bob Badour <bbadour_at_pei.sympatico.ca>
Date: Mon, 22 Jan 2007 19:22:32 GMT
Message-ID: <Y98th.4071$1x.68972_at_ursa-nb00s0.nbnet.nb.ca>
>
>
> Hey Dawn,
>
> I note that your speculative, discursive style of essay hasn't been
> received with much favor here. Would you consider another
> approach? Would you consider the possibility of addressing
> specific problems and providing specific solutions? You could,
> for example, pick some common problem domain, invent a
> conceptual schema, propose a logical schema in an MV approach
> and a SQL approach (and possibly a Tutorial D approach.)
> The SQL you come up with could perhaps be polished by
> other people; maybe you could use some of your MV
> acquaintances to polish the MV queries.
>
> For example, I often think of problems in terms of a schema
> with Customers, Invoices, and InvoiceLineItems. These are
> familiar to anyone who has ever bought anything, so they
> have the advantage of being a common ground for discussion.
> (As well as being a very real-world application of data
> management.)
>
> One problem I have with a lot of your posts is that they are
> very abstract and nebulous. We traded lists of questions a
> short time ago, and I couldn't help but notice that most of
> my questions had definite answers, and most of yours didn't.
> This idea would make the discussion more concrete. If you
> have the courage of your convictions, you should to be able
> to demonstrate a variety of situations where MV works better
> in the small, rather than just giving anecdotes about how well
> you feel it works in the unmanageable-to-compare large.
>
> It wouldn't even have to be a particularly theory-based
> dialog. Just propose a problem, build a schema in MV
> and SQL, build some challenging queries in MV and SQL.
> MV does have a fairly standardized query language, does
> it not?
>
> What do you think?
Date: Mon, 22 Jan 2007 19:22:32 GMT
Message-ID: <Y98th.4071$1x.68972_at_ursa-nb00s0.nbnet.nb.ca>
Marshall wrote:
> On Jan 22, 7:29 am, "dawn" <dawnwolth..._at_gmail.com> wrote:
>
>>I agree. What do you think of products such as Intersystems Cache'? >>What would you suspect (or know) might be missing for such a product to >>meet your needs? --dawn
>
>
> Hey Dawn,
>
> I note that your speculative, discursive style of essay hasn't been
> received with much favor here. Would you consider another
> approach? Would you consider the possibility of addressing
> specific problems and providing specific solutions? You could,
> for example, pick some common problem domain, invent a
> conceptual schema, propose a logical schema in an MV approach
> and a SQL approach (and possibly a Tutorial D approach.)
> The SQL you come up with could perhaps be polished by
> other people; maybe you could use some of your MV
> acquaintances to polish the MV queries.
>
> For example, I often think of problems in terms of a schema
> with Customers, Invoices, and InvoiceLineItems. These are
> familiar to anyone who has ever bought anything, so they
> have the advantage of being a common ground for discussion.
> (As well as being a very real-world application of data
> management.)
>
> One problem I have with a lot of your posts is that they are
> very abstract and nebulous. We traded lists of questions a
> short time ago, and I couldn't help but notice that most of
> my questions had definite answers, and most of yours didn't.
> This idea would make the discussion more concrete. If you
> have the courage of your convictions, you should to be able
> to demonstrate a variety of situations where MV works better
> in the small, rather than just giving anecdotes about how well
> you feel it works in the unmanageable-to-compare large.
>
> It wouldn't even have to be a particularly theory-based
> dialog. Just propose a problem, build a schema in MV
> and SQL, build some challenging queries in MV and SQL.
> MV does have a fairly standardized query language, does
> it not?
>
> What do you think?
Oy vey! Don't encourage her! Don't you remember the whole red car blue car thing? Received on Mon Jan 22 2007 - 20:22:32 CET