[Info-vax] Comment on the future of OpenVMS

[Arne Vajhøj]

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.

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

Arne