[Info-vax] The best VMS features, was: Re: openvms renaming file

[Bill Gunshannon]

On 05/28/2018 02:56 PM, Simon Clubley wrote:
> On 2018-05-28, Dave Froble <davef at tsoft-inc.com> wrote:
>>
>> I don't think so.  RMS indexed files allow concurrent use, using the DLM.
>>
>> The problem with RMS isn't the design, it's the implementation.  Modern
>> RDBMS systems do much of their work in memory.  RMS does the work on
>> disk.  Quite a large difference in speed, as one might expect.
>>
>> Re-implement RMS in the same manner and you'd see totally different
>> performance.  Ya got to remember how old the design and implementation
>> of RMS is.  40 years ago it worked well.
>>
> 
> RMS ISAM files would still be very limited compared to a database,
> even MySQL.
> 
> For example, compare what is involved in adding a new field to
> a database compared to what is involved in adding that same field
> to a RMS ISAM file.
> 

Maybe it's just me, but isn't comparing a database system and
RMS like comparing a word processor and a typewriter.

bill