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honey the codewitch wrote: Mysql is another option and might be worth learning
There are two parts: Programming and Operations.
For the first the vast majority between the major SQL databases are similar enough that one can get through it. There can be gotchas for things like the exact way one creates a stored proc but examples allow one to get through it.
At least for me one problem with MySQL which I only just recently learned is that it has a history of 'losing' the seed indexes (auto increment). I can't state for certain how significant a problem it is in general but it seemed pretty significant to me that it happened at all.
As for Operations I think you need to carefully consider your commitment to handling this for your users. Given your other posts maybe this must be a server only solution but I will say that the cloud solutions eliminate the vast majority of maintenance work and can be very low cost as long as one very carefully throttles everything.
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I don't really want to add another paid service to my list of worries, as anything that costs me money is just more potential source for anxiety - like for example, when my bank card's fraud protection kicks in and cancels my card even though it shouldn't have, and then all my autopays need to be redone.
So like, I keep it minimal. I'm more concerned about operations than programming, so otherwise a cloud solution would be ideal, but maybe I'll check to see if my existing VPS provider offers it. Adding extra cost to an existing bill is something i'm much more inclined to do vs adding another bill.
Check out my IoT graphics library here:
https://honeythecodewitch.com/gfx
And my IoT UI/User Experience library here:
https://honeythecodewitch.com/uix
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I once tried the free Postgres hosting option of Heroku, but could not get it working sadly, it all seemed geared towards their "app ecosystem" which I was not interested in. Anyway they stopped offering the free option, so it's best to look elsewhere.
Maybe one of these: Top 9 free online databases[^]
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>history of 'losing' the seed
Was it multi-instanced?
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Yes? I didn't research it that much.
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If you want an easy setup for Postgresql you can try this: https://pigsty.io/
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From what I know, MSSQL exists for Linux also.
growing up with Multics, learning UNIX and then Linux for over 25 years, I abandoned that platform completely for Microsoft when I found that my peers had used Microsoft products and they were able to upgrade their solutions as time passed. I had to fight every time with Unix/Linux changes.
After 15 years on the Microsoft path I have never looked back and I am going on 40 years of developing software and I can maintain and upgrade applications from even 20 years ago.
Having software out there bringing you rent, the better off you are and the more time you have to develop.
That learning curve is bad enough with new technology alone, so I advise you to stick with your tools.
I wish you luck!
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I have administered a system for 9 years based on PostgreSQL, another system for 17 years based on SQL Server, and maintain a private Linux system based on MySQL.
Of all the systems mentioned in this thread, PostgreSQL is my favorite for three main reasons:
1. It is free, unless you want to pay for support.
2. It is object oriented. Writing procedures that work together is very pleasant in PostgreSQL.
3. It is pure, not beset with encumbering licenses from corporations wanting to take over the world.
4. I can and have fairly easily written my own extension for it. In my case, it was my own version of SOUNDEX.
For SQL Server:
1. It is not free.
2. When I write a View2 that uses a View1, if View1 is ever updated, View2 does not see the update until I ALTER (with no changes needed) View2.
3. I use the Microsoft OPENQUERY a lot to do joins on remote databases before the data is received on my end. One problem with it is that it does not accept variables of any sort.
4. The interface is generally polished and familiar to me. My main irritation is the line numbering used on error messages that don't match my source without doing arithmetic.
For MySQL:
1. It is free up to a point.
2. It has ubiquitous documentation.
3. It is maintained poorly by Oracle, with whom I have had unpleasant communications with an arrogant salesman.
4. It has been patched to use multiple engines in an attempt to get wanted features. I.e., it is a bit of a mess.
5. I think I would rather use MariaDB, but haven't had the opportunity.
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Quote: When I write a View2 that uses a View1, if View1 is ever updated, View2 does not see the update until I ALTER (with no changes needed) View2.
Do you mean if it is created without schemabinding?
Postgresql was different, there it was the default. Oh the joys of cascade dropping and recreating views and functions ... (Firebird 1.5 is the same) Oracle is wise .
Creating views on views therefore considered a bad practice.
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I try to avoid views of a view, but it fit my desire for DRY (Don't Repeat Yourself) and laziness. 
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Bruce Patin wrote: When I write a View2 that uses a View1, if View1 is ever updated, View2 does not see the update until I ALTER (with no changes needed) View2.
Seek ye the sp_refreshview procedure. Use it as needed.
At my last job I implemented a procedure which ran it on all views in accordance with their dependencies. It was part of our standard prod deployment process.
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Support them all and allow the user to choose what he wants. 
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Wordle 1,125 5/6
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Wordle 1,125 3/6*
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"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
AntiTwitter: @DalekDave is now a follower!
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Happiness will never come to those who fail to appreciate what they already have. -Anon
And those who were seen dancing were thought to be insane by those who could not hear the music. -Frederick Nietzsche
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In a closed society where everybody's guilty, the only crime is getting caught. In a world of thieves, the only final sin is stupidity. - Hunter S Thompson - RIP
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Within you lies the power for good - Use it!
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Quote: Wordle 1,125 4/6
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Ok, I have had my coffee, so you can all come out now!
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Fitting 
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The shortest horror story: On Error Resume Next
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If you sleep outdoors this time of the year in Norway, you must be prepared for limited darkness trough the night. Visitors from further south may have problems getting a good nights sleep. Indoors it should be less of a problem, you'd think - just pull the curtain. It doesn't always work ...
Every summer, Oslo, Norway, arranges an international giant soccer tournament for kids 6-16 years, called Norway Cup. It has been held since 1972; this year 12,000 kids are participating. The kids sleep in sleeping bags in the classrooms of schools nearby. About a thousand of them will sleep with the lights turned on in the ceiling.
Why? The lights are controlled by IR sensors. With 30 kids sleeping in the classroom, the sensors are not it doubt: People are present; lights should be turned on.
But isn't there a main switch for turning the light off, regardless of what the sensor says? Yes, there is - but that will also turn off the lights in the emergency signs, the arrows pointing in the direction of the exit, in case the building has to be evacuated. For security reasons, those lights cannot be turned off. Therefore the ceiling lights cannot be turned off in the room where the kids are sleeping.
I laughed out hysterically when I read this in the newspaper. Whoever designed this light control should be dipped in tar and rolled in feathers.
Religious freedom is the freedom to say that two plus two make five.
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Once doing work in Hamburg Germany during the summer, I learned to get a hotel room with dark curtains if room had exterior view. It is about ~53 deg north, so sun rises very early and sets very late, more so in Norway.
"A little time, a little trouble, your better day"
Badfinger
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