[Info-vax] OpenVMS STARTUP Whitepaper

[Arne Vajhøj]

On 12/11/2020 6:55 PM, Jan-Erik Söderholm wrote:
> Den 2020-12-11 kl. 19:35, skrev Arne Vajhøj:
>>>> But will Rdb work properly without the RDMS_MONITOR and RMU 
>>>> processes running?
>>>
>>> No, your application will not do anything with the data without having
>>> an "OK" from the monitor. You send an "attach request" (well, the code
>>> in the sharable images does) to the monitor and the monitor says "OK".
>>
>>>> Will it work properly without the Rdb logicals being defined?
>>>
>>> No, you need at least some of the logicals setup by the startup file.
>>
>> That is what I thought.
>>
>> Rdb is not really like SQLite.
>>
> 
> No. And I do not remember, but have anyone really said so?

This sub-topic was kicked off by this:

# I believe in the case of Rdb there is no start-up because there is no
# service -- you just link your code against the libraries and run it in
# the context of whatever process.  In other words, the same way you are
# running SQLite.

> I havn't looked too closely, but SQLite seems to me more like
> dBase-III with an SQL front-end.

SQLite is a typical embedded database.

MS Access, FireBird, a bunch of Java databases (H2, HSQLDB, Derby)
are all accessed similar.

DBase III and IV was somewhat similar a number of decades ago.

Arne