Sujet : Re: The joy of SQL
De : 186283 (at) *nospam* ud0s4.net (186282@ud0s4.net)
Groupes : comp.os.linux.miscDate : 03. Nov 2024, 02:48:47
Autres entêtes
Organisation : wokiesux
Message-ID : <uX2dnRuXzJsTS7v6nZ2dnZfqnPWdnZ2d@earthlink.com>
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User-Agent : Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0
On 11/2/24 7:49 AM, The Natural Philosopher wrote:
On 02/11/2024 05:19, 186282@ud0s4.net wrote:
I don't think there's any distinct "advantage" these
days in either flat-file or MV. Plusses and minuses
for each approach. It's all a matter of how you FEEL
data should be structured/stored.
>
In short, 'religion'.
MV? no one seems to know what 'MV' is. Did you invent it?
???
MV = Multi-Valued = Data fields that can hold long
lists of that KIND of information. If you have a
fleet-tracking DB then there'd be ONE field saying
"mileage" and likely another for "fuel-added" and
they'd just be added-to over time. The record for
that vehicle is read all-at-once, rather than there
being dozens, hundreds, of records for said vehicle
every time it was fueled-up.
Insofar as data storage goes there are considerable advantages to a normalised database with indices et al.
It is not a religious choice.
Ummm ... I'd still say so.
MV DBs can also have indexes BTW.
The religion comes in with supporters who have been told that *irrespective of the actual context or uses* it is 'simply the best'
Rules are for the guidance of wise men and the obedience of fools.
MV DBs are still sold - sometimes for really serious
money - so clearly a lot of people/corps DO like that
way of dealing with data. OpenQM is likely best known
to Linux users.
https://www.predictiveanalyticstoday.com/top-free-commercial-multivalue-database/