[Info-vax] Comment on the future of OpenVMS

Richard Maher maher_rj at hotspamnotmail.com
Tue Oct 27 06:49:06 EDT 2009


Hi Arne,

"Arne Vajhøj" <arne at vajhoej.dk> wrote in message
news:4ae65e64$0$280$14726298 at news.sunsite.dk...
> Neil Rieck wrote:
> > On Oct 25, 4:54 pm, JF Mezei <jfmezei.spam... at vaxination.ca> wrote:
> >> And these 150,000 customers would remain with Oracle as DB engine when
> >> they move from VMS to some other OS.  Oracle wants to keep those
> >> customers and will be as enthousiastic as possible to retain them.
> >>
> >> This is especially true of RDB customers who are facing an eventual
move
> >>  off Rdb when they move away from VMS, so Oracle wants to have very
> >> good, enthousiastic and positive relationship with them te ensure
> >> highest ratio of customers who go from Rdb to Oracle instead of another
> >> DB engine.
> >
> > Lets remember that Oracle-RDB allows linkage to DEC languages (BASIC,
> > COBOL, Pascal, C, C++, etc.) while Oracle-DB only allows linkage to C/C
> > ++. (I am ignoring ODBC, JDBC and SQL  for the moment). This means it
> > may never be possible to migrate certain applications (think bank and
> > stock-exchange applications) away from Oracle-RDB without a major
> > inconvenience to the customer.
>
> OCI/OCCI is C/C++ only. But C/C++ can be called from other languages.
>
> Oracle in general supports C/C++ and Cobol for embedded SQL (plus
> Ada, Fortran and Pascal if Oracle is old enough).
>
> Java has JDBC - and I can not see much reason to discard it.

Have you ever even coded or managed an Rdb application? Most (95%) of such
code executes in Exec mode in the context of the User's or Servers' process.
No OCI No ODBC, No JDBC! *NO* seperate processes for database access! Just
like RMS. Exec mode Disk/file channels, protected memory, DSRI, UWSSs, the
whole enchilada!

These misunderstandings may help to explain why your company, above all,
could benefit so greatly from IPsec but wont't because its employees insist
on discussing "the trees"   :-(

>
> It would not be cheap to port from RDB to DB, but it would
> be possible.
>
> Arne

Regards Richard Maher





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