Hi Ruben


Datahub does not encapsulate the business rules within the
database/schema itself.

You cannot have a stored procedure that spans multiple databases.
You cannot have the database verify it's own consistancy when the
elements of the database (read servers and files) can be periodically
online and offline.

Datahub is a standard middleware utility, not what I was describing.

best regards

Dalton

On Fri, 2005-09-23 at 12:48 -0500, Ruben Carballo Macklis wrote:
> Hello nagypapi.
>
> I've the same problem, finding a thesis proyect...
> I think, distributed database it's not a good subject
> for your thesis. Because, borland has a component
> named Datahub or something like that. Datahub it's a
> component that can conect to multiple batabases
> systems and support transactions.
>
> So if you like to desing network protocols for mobile
> devices, why not try to design a batabase conection
> driver for Firebird.
>
> Well that's an example...
>
> Best Regards, Ruben
>
>
> --- Dalton Calford <dcalford@...>
> escribió:
>
> > Hi Sean,
> >
> > I would suggest multiple server/database connections
> > from within a
> > single sql statement.
> >
> > For example, you may have accounting data on one
> > server, while customer
> > data is on another while inventory is on a third.
> >
> > You want to update customer, accounting and
> > inventory levels all within
> > a single transaction.
> >
> > (Very simple problem, complex numbers of solutions)
> >
> > You would encounter the same problems of live
> > replication systems
> > combined with the difficulties of programming
> > language designers.
> >
> > There are over a hundred different problems that I
> > can think of off the
> > top of my head. The design criteria would be a
> > paper onto itself.
> >
> > The final solution would use both distributed
> > computing and cluster
> > management. It would finally create a true purpose
> > for the difference
> > between "create database" and "create schema".
> >
> > Just a suggestion, but, it would be appreciated by a
> > large portion of
> > the FB community and it is sexy enough to get a few
> > others to help when
> > needed.
> >
> > best regards
> >
> >
> > Dalton
> >
> > On Thu, 2005-09-22 at 23:39 +0000, nagypapi wrote:
> > > I'm about to finish in a year at the Budapest
> > University of Technology
> > > and Economics, and I'm on the lookout for a base I
> > can build a Thesis
> > > on. I'm studying Informatics (Computer Science),
> > specialized in
> > > Infocommunications systems (which more or less
> > means network stuff).
> > >
> > > Currently I'm doing research at Ericcson, but the
> > Thesis I could write
> > > there probably won't have anything to do with my
> > future work, so I'm
> > > taking a sniff on available possibilities before I
> > start my research.
> > >
> > > I use Firebird, and I like it. Contributing to it
> > would feel a bit
> > > like doing something for my benefit too.
> > >
> > > So my question is: is there something that needs
> > research, testing,
> > > that would contribute to the firebird project, and
> > is there someone
> > > who is willing to help me if I need it? (doesn't
> > necessarily have to
> > > do with network comm.) Or give me a link to such a
> > resource.
> > >
> > > Skills I use regularly (in usage order):
> > > java (not j2ee yet though), database stuff, php
> > and anything else I
> > > need to use to get something done.
> > >
> > > I took a major part in the research of SAMSON, an
> > adhoc-network
> > > address management protocol which was shown at
> > Eunice 2005
> > > (http://www.it.uc3m.es/eunice2005/program.html).
> > This just means I
> > > liked designing a protocol.
> > >
> > > I have about half a year for research before I
> > need to start writing
> > > the thesis (in english). And I've got in average 2
> > to 3 hours per day.
> > > If I did take to helping the project, that would
> > mean 300-450 hours I
> > > could contribute.
> > >
> > > Sean
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
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> >
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