[Info-vax] VSI roadmap

Arne Vajhøj arne at vajhoej.dk
Tue Aug 22 19:52:10 EDT 2023


On 8/22/2023 7:46 PM, Arne Vajhøj wrote:
> On 8/22/2023 10:17 AM, Johnny Billquist wrote:
>> On 2023-08-21 14:10, Simon Clubley wrote:
>>> On 2023-08-18, Dave Froble <davef at tsoft-inc.com> wrote:
>>>> Just not anywhere as nice with RMS and "external to the database" 
>>>> record
>>>> definitions.
>>>
>>> RMS was clearly designed by people who thought punched cards were 
>>> cool...
>>
>> Yeah. Just like BDB. Or any other key-value datastore. Definitely 
>> smells like puched cards...
> 
> The concept is sort of timeless.
> 
> ISAM/VSAM on IBM mainframe must be about as old as me.
> 
> Lots of OS got similar features. Including VMS RMS.
> *nix got DBM in 1979 and BDB in 1994.
> 
> It is a standard or at least de facto standard feature
> in Cobol.
> 
> In this century the concept has become known
> as NoSQL key value store and several new has
> been created like:
>    LevelDB (Google) 2011
>    LMDB 2011
>    RocksDB (Facebook) 2012
> 
> Where the age of RMS indexed-sequential files
> show is the 32 KB record size limit.

Timeless concept but the usage model has changed from
"default database choice" to "either low level building block
for something higher level like Relational Database or
NoSQL document store or a choice for special cases".

Arne






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