On Tuesday 09 June 2009 09:42:45 am Tino Schwarze wrote:
> >
> > With RDB on OpenVMS, designed correctly, you lose nothing. Users and
> > rights identifiers are provided by the OS as it integrates into the
> > AUTHORIZE system. Single and multi-file databases are scattered about the
> > entirety of the Files-11 storage system. You simply need to tell the RDB
> > monitor about them again if you want them opened and available at system
> > boot. If not, your application opens them on-demand.
>
> Okay, that's one example. And it's one of a very specialised system. I
> suppose, there aren't as many OpenVMS installs out there as Postgres
> installations? Apart from that, RDB is designed that way and explicitly
> supports that kind of setup.
>
I don't know how many installs there are. I know it was the first commercial relational database supporting a DISTRIBUTED environment when it came out in the 1980s. It was so far ahead of everything else out there Oracle sued DEC for the right to buy it. Twenty years later and it still outclasses Oracle's namesake product in just about every way.
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Roland Hughes
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