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Re: Relationships error, C# Visual Studio 2005 database bug?, "the columns in table XYZ do not match an existing primary key or UNIQUE constraint", copying columns

Posted by raylopez99 on 07/16/07 09:44

On Jul 15, 5:19 pm, "Steve Dassin" <rac4sqlnospam@net> wrote:
> Hello Ray,
>
> Thanks for at least taking a look at the blog -:)
> It's not my product, I'm just a very enthusiastic advocate
> of D4. I 'get it', of course I get sql too -:)
> I'm trying to generate some interest in it here but it's
> like pulling teeth. Pulling people out of their sql
> comfort zone is no easy task. At least the excuses are
> entertaining -:) Introducing advanced concepts like a
> 'table', a 'row', a 'list' and extending the concept of
> a 'variable' seems like anathema to the sql community -:(
> I guess I'll have to be more aggressive in convincing
> people just what the big picture is. Such confusion, such
> misunderstandings. But eventually some, especially those
> that have some understanding of application development,
> will see what I'm talking about, get it and take the leap.
> For those that see themselves as basically sql programmers
> my job is tougher. They will need solid quality re-learning.
>
> best,
> steve
>

Well hang in there! Worse that can happen is that as a pioneer, you
educate the Great Unwashed Masses, convert some Early Adopters to your
product, after many years of trying, then some new foreign firm paying
slave programmer wages comes in and steals your market share. But you
get to be known as a pioneer, like Dan Bricklin and VisiCalc.

My book sez: "OODBMS were intially developed in the 1990s, but have
not been commercially successful yet. One problem is that
organizations currently have large volumes of data in hierarchical and
relational formats, and it is expensive and time consuming to migrate
the data to object classes. Another problem is that object-oriented
databases have not yet been able to yield the performance needed for
applications that must process high transaction volumes quickly. [THIS
LAST SENTENCE SOUNDS LIKE WHAT WE DISCUSSED IN THIS THREAD, WITH FLAT
FILES AND CAM MEMORY. I BET AS H/W BECOMES FASTER THIS LAST CONCERN
WILL BE LESS IMPORTANT.]" from p. 9 Joline Morrison SQL book.

RL

 

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