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

[Simon Clubley]

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.

Simon.

-- 
Simon Clubley, clubley at remove_me.eisner.decus.org-Earth.UFP
Microsoft: Bringing you 1980s technology to a 21st century world